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General discussion

CPU keeps going to 100%--any suggestions to remedy?

Feb 14, 2008 7:51AM PST
Question:

Hi, I'm running Windows XP Pro SP2 and I have developed a
problem where by the CPU keeps going to 100% and either
freezes the PC or slows it down to virtually standstill. I
have searched on the net and found that quite a few people
have this problem. I tried some of the fixes suggested, but
they didn't work. I have to reboot the PC and then it?s fine
for awhile. What could possibly be causing this problem? Is
this a problem with the operating system or is it a hardware
problem? I hope you can help with this problem. Cheers!

--Submitted by Anthony K.

Answer voted most helpful by the CNET Community newsletter readers:

CPU Usage Stuck at 100%


There are many things that can cause a computer to show 100% when you display the CPU usage. Spyware, viruses, bad drivers or damaged programs can all lead to this type of problem. In some cases, it can be a known issue with your specific model computer, so you should first check the website for your computer to see if you see anything there regarding this issue. If not, then there are several ways to approach this problem.

1. BACKUP Your Data ? Sorry but I can never say this enough. You should never work on a computer without first backing up any critical data.

2. As mentioned above, check your manufacturer?s website for any known problems with your specific computer model.

3. System Restore ? If the problem just started within the last few days, there is always a fair chance that running a Windows System Restore and setting your computer back a few days may solve your problem. But if you have had the problem for awhile OR you have installed a bunch of programs or updates recently then this may not work at all. System Restore can be found by going to START > ALL PROGRAMS > ACCESSORIES > SYSTEM TOOLS > SYSTEM RESTORE. Note: I would not recommend going back more than a week or so.

4. Virus and Spyware ? I can only assume that you already did this but a computer that is infected with viruses and/or spyware can exhibit this type of behavior. So make sure that your computer is totally clean by running full virus and Spyware scans. You may even want to double check by running one of the many free online virus scans.

5. Identify the Process - See if you can identify a specific process that is using the most CPU percentage. Use Ctrl+Alt+Del to open task manager and click on the processes tab. Scroll down through the list for any process that has the highest CPU percentage. You can try to end that process and see if that helps and then Google the name of the process to help figure out what it is. You may luck out and find the exact program to uninstall or update to fix the problem. But, in most cases it will turn out to be one of the many generic windows processes and may not really give you any real clue as to the exact problem.

6. Disconnect Peripherals ? Shut down your computer and unplug all external devices such as Printers, Scanners and Backup Drives. Leave only your Mouse, Keyboard and Internet Connection plugged in and reboot your computer to see if the problem is still there. If the problem goes away, plug things back in, one at a time until you have isolated the problem device.

7. Shut Down Startup Items ? Use msconfig to Shut down all startup programs and reboot the computer to see if the problem goes away. If it does then go back and methodically turn back ON individual startup items until the problem returns. Once you isolate the offending program, you can Google the name of the file to find out which program it is related to. To use MSCONFIG click on START and then RUN and type msconfig in the run box and then click on OK. Click on the STARTUP tab and you will be presented with a list of items that are going to run automatically every time the computer starts. You can select or deselect any items the you want to start when your computer boots. Now click on OK and reboot your computer. You can go back anytime and run msconfig to turn back on any items that you choose until you find which one is causing your problem.

8. Update all drivers for your computer ? Go to the website for your computer and download and install the latest drivers for your computer. Start with Chipset, Video, and Sound drivers first, followed by network, modem and others.

9. Update Bios ? In some cases the Bios may need updating, but I would stay away from this unless you really know what you are doing, because you can permanently damage your computer if you mess up during this process.

10. Problematic Programs ? There are many programs that have been known to cause this type of problem. For example some earlier versions of Kodak Easy Share software had this problem. Norton and some other antivirus software can become corrupt and cause this issue as well as software and drivers associated with many All-In-One printers. You should suspect any program that calls home for updates as well as file sharing programs like kazza and limewire. Other VOIP software such as Skype can also be a problem. I would suggest uninstalling any programs that you do not need at this moment to help isolate the problem. NOTE: Do not uninstall anything you want that you do have a way to reinstall such as having the original CD?s or downloads.

11. Full Recovery or Reinstallation ? If all else fails then you may have to resort to a full system Recovery or a reinstallation of Windows. This would be a last resort, but can rejuvenate a computer to like new condition and for some problems, may even be less time consuming.

Good Luck and Please keep us posted as to what you find.

Dana
Wayland Computer

http://forums.cnet.com/5208-10149_102-0.html?forumID=7&threadID=284007&messageID=2705924#2705924

Submitted by waytron

If you have any additional suggestions or experience of your own to share with Anthony, please click the reply link and post away. Please be detailed as possible in your answers. Thank you!

Discussion is locked

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100% cpu usage is a sure sign of a virus
Feb 18, 2008 11:09PM PST

I have a temperature probe on the front of my computer and it normally runs a 85 degrees F, That jumped to 105F and the cpu jumped from 95% idle to 0% idle, after I connected my computer to the college campus Ethernet broad band cable. I was immediately attacked and got 9 copies of the sasser virus. The virus removal tool got rid of 8 copies but not the one running in ram memory. Had to reboot into "SAFE MODE" and then run Norton Anti virus to clean the machine. that was 5 years ago.
Recently my laptop was attacked by 5 viruses and MS latest "malicious virus removal tool" cured 4 but could not remove the "backdoor.Sdbot", MS told me to get a real antivirus program. I had to purchase the latest version of Norton to get rid of that. Thank GOD it worked. I lost at least a hundred files before getting the cure and lost one usb drive that wont reformat (had to return it to store). I had Avast! and spybot something running in the background and they did not catch these viruses. In fact after Norton found them, just for curiosity, I reran Avast! and that spy doctor thing and they still did not catch anything. Needless to say, I deleted those programs and I will only have Norton from now on. You get what you pay 4.

So Bud, you got mail(virus)!

Jeff Jones, Oregon , Xp ver2
2/19/2008
.
.

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100% cpu usage is a sure sign of a virus
Feb 22, 2008 7:09PM PST

try this it has work for me

copy it to your note pad an call it clean.bat

And here's the commands that correspond to the different buttons. The most important one from a
cleanup perspective is the first, which will delete just the temporary internet files that are
cluttering up your computer.

To use these commands, just run them from the command line, the start menu search box in vista,
or a batch file.
---------------- copy to your note pad --------------
Temporary Internet Files

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8

Cookies

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2

History

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1

Form Data

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16

Passwords

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32

Delete All

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 255

Delete All - "Also delete files and settings stored by add-ons"

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 4351

These commands should work in Internet Explorer 7 on XP or on Windows Vista.


del C:\Windows\Prefetch\*.* /Q
del C:\Documents and Settings\HP_Owner\LocalSettings\Temporary Internet Files\*.* /Q

ipconfig /flushdns

Rundll32.exe advapi32.dll,ProcessIdleTasks


rmdir %SYSTEMROOT%\Temp\ /S /Q
md %SYSTEMROOT%\Temp
rmdir "%USERPROFILE%\Cookies\" /S /Q
md "%USERPROFILE%\Cookies"
rmdir "%USERPROFILE%\Recent\" /S /Q
md "%USERPROFILE%\Recent"
rmdir "%USERPROFILE%\Local Settings\Temp\" /S /Q
md "%USERPROFILE%\Local Settings\Temp
rmdir "%USERPROFILE%\Local Settings\Temporary Internet Files\" /S /Q
md "%USERPROFILE%\Local Settings\Temporary Internet Files"
rmdir "%SYSTEMPARTITION%\Documents and Settings\Default User\Cookies\" /S /Q
rmdir "%SYSTEMPARTITION%\Documents and Settings\Default User\Recent\" /S /Q
md "%SYSTEMPARTITION%\Documents and Settings\Default User\Recent"
rmdir "%SYSTEMPARTITION%\Documents and Settings\Default User\Local Settings\Temp\" /S /Q
md "%SYSTEMPARTITION%\Documents and Settings\Default User\Local Settings\Temp"
rmdir "%SYSTEMPARTITION%\Documents and Settings\Default User\Local Settings\Temporary Internet Files\" /S /Q
md "%SYSTEMPARTITION%\Documents and Settings\Default User\Local Settings\Temporary Internet Files"
RMDIR "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\file\" /S /Q
MD "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\file"
RMDIR "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\jar\" /S /Q
MD "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\jar"
RMDIR "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\tmp\" /S /Q
MD "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\tmp"
RMDIR "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\ext\" /S /Q
MD "%USERPROFILE%\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\ext"
del C:\Windows\Prefetch\*.* /Q
del C:\Documents and Settings\HP_Owner\Local Settings\Temporary Internet Files\* /S /Q
%SystemRoot%\system32\cleanmgr.exe
cleanmgr /sagerun:100

---------------------------------------------------------
Paul
sfctracey@msn.com

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well no
Feb 23, 2008 10:24AM PST

It's not a "SURE sign of a virus"
there are atleast 20 different "Probable Causes"
and you can easily throw in another 20.
We don't know all the specs.
we don't know alot of exact information.
They might have a virus.
might not.
might have 15 or 30 programs at startup or in background.
I run a old slow computer, my culprit "was" heavy flash based sites.

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You sometimes get more than what you paid if it's free
Feb 28, 2008 7:27AM PST

I disagree that you get what you paid for. I have always used AVG Free and Defender real time protection and never gotten a virus. I also scan monthly with Adaware and Trend Micro Housecall, which is the most powerful virus scan one can get (free) from the web. When I had a slow condition on another computer, Microsoft walked me through a number of steps which included running Trend Micro Housecall in Safe Mode to make sure there were no viruses, editing Visual Effects, keeping it clean via Disk Cleanup and CCleaner (free, again) and Defragging. I now use the Auslogics defrag and registry defrag (free) which are 10x better than MS defrag and registry cleaner on Windows Live Safety scan. Auslogics also has a trial Speed Booster which taught me important tweaks to the system for speed and cleanliness. Now I have advanced to tweaking with Tweak VI which even does CPU, Superfetch and Disc optimization - you just have to study every item carefully and do it over months instead of impulsively. All are free and all keep my $339 eMachine T5234 Vista Premium running like it is turbocharged.

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Not an answer
Feb 19, 2008 3:58AM PST

I have the exact same question. Help

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100% cpu usage is a sure sign of a virus
Feb 25, 2008 10:53AM PST

Read through first and evaluate before doing.
What you do is something that you choose by doing the least work to accomplish the out come, before wiping your hard drive and starting scratch. Like others: You create a check list to follow so you don't get lost going in a circles. Not remembering what your did in the order that you did it. Don't loose sleep over this. It is better do do it slowly when you are learning.
-When I investigated this problem I found that people like me got confused and not paying attention to details over a particular issue when installing or re-installing an application. One of the questions in this process in the wizard asks do you want this "application" to run on start up? You should say no. This is confusion because your mind thinks do you want this in your start-up list-- which should be no. The "Start" menu button, is not the same thing.
On your menu bar, icons show up. Your computer thinks that it smarter than you. It remembers what programs you used last and it thinks that you need them when you start your computer. Some not all, applications, you can fix this by 1) open application window of the application,
2) find prefrences, in a dialog window it may show
boxes with a description of options.
a) make sure all boxes are unchecked that would
apply to opening on start-up.
b) Then may have an OK button or an apply button.
c) Right click and choose close if possible.
3) Properties- right click file application and choose properties-
sometime this can be changed for different issues.
Other applications that are a little different in wording would be like "McAffie" (not sure of spelling), has different options. I choose to run every time I start my computer, because that one seems the best for me. Other applications are dependent on your operating system and get confused if you move them to another location. Make sure the locations for these are not easily accessed by other users on your computer.
Another way to fix your computer would be to copy all your files that you made to a storage media like data CD's or DVD's with stuff like pictures, text documents, etc., on a regular basis. After turning off your computer, unplug all your hardware including your main part of computer from power source, monitor, printer, everything. Then first plug in your moniter to the main, then your mouse and keyboard. Then plug in your power source. unplug all your periferals. Let the computer go through the start-up. This is not something I like to do because my printer doesn't recognize to print and I have to find the link to make it work again.
Sometimes, all you need to do is "unplug" the main power chord and then plug in after computer has rested for 10 minutes at least, and more if your computer is hot. When the weather is really hot my computer works really slow, and may even freeze.
The worst is if you treat like a crash and then you have to
follow instructions-- for-or either go back to a previous date- like before you had problems. Or uninstall every thing and unplug everything and start the process you did when you first got your computer and reinstall and follow instructions and don't check any that say open on start-up.
Here is a google search which is basic for most users even though it says it is for "Windows XP Fundamentals". It is a free download. Once you learn the basics, you have a starting point of terms if you need to find out more information. Link below to other things you can do.

Google search result: Copy and paste into your URL address window:

http://www.google.com/search?client=safari&rls=en&q=Check+list+for+trouble+shooting+problems+on+my+computerj&ie=UTF-8&oe=UTF-8

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Re 103 pages long
Feb 25, 2008 5:05PM PST

Dear Lois Anderson,

Thanks for the Comcast hog of 103 pages of cures for everything from 2003 on. I am using a 2002 version of Office XP and XP Pro. I paid over $500 for XP Pro. I expected it to work.

In my last crash last weekend many Media Files and Outlook Express files were lost. I did a Google Desktop search for them and found out why I filled a 60 Gig backup hard drive in a year. Thirty-plus pages were exact duplicates of the same ten files for a total of over 300 duplications on a few albums.

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Sysinternals Process Explorer
Feb 19, 2008 6:04AM PST

Undoubtedly some process is running in the background that is tying up the system resources. Task Manager is a good place to start looking. Check to see what process is using up the most of the CPU. This will be your culprit. But wait you say the issue is with something called svchost.exe? Well that is a system process and you may not want to kill it. In this case I would recommend a program from SysInternals called Process Explorer. It's like Task Manager only more informative. svchost.exe is referenced by a lot of things and this tool will allow you to see what is part of that particular svchost instance. This hopefully will give you enough information to find the program that is causing the issue.

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For the love of God don't touch svchost.exe
Feb 27, 2008 3:05PM PST

Thanks for the bad info. It totally crashed my system. The system would give a warning that I had one minute to save files. I couldn't get to system restore.

I cost me 26 hours of non stop misery. DO NOT TOUCH svchost.exe it destroys your restore system files immediately but hey go ahead if it floats your boat to have misery untold, as Mr. Burns on The Simpsons would say; "Release the hounds!"

Thanks again and may God richly bless your pointed little head.

Sincerely,
Art O'Shea

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NOT BAD INFO. You didn't read or know what you're doing.
Feb 27, 2008 3:52PM PST

Sorry, But, NOT BAD INFO. You didn't read or know what you're doing.
(Below at bottom. is copied from that post which you should have taken note on).
It doesn't destroy yourt restore files.
Yes it will give you that warning to save and you have about 1 minute.
it didn't mean to create a system restore though. Lol.
It meant to save and or close any programs and files you have open you might be editing or creating.
Have no idea why you say it cost you 26 hours of non stop misery.
(It should have booted right back up after you turned it back on)
other than the fact you pointed out that you don't know what you're doing Sad
A couple of those svchosts will do exactly that, and others aren't "attatched to explorer".
Which is why you use The program to find out which one "IS" "Attatched to what".
You don't just go and end task on the anyone you want, and probably the one using the most Memory or CPU Lol.

NOW READ CAREFULLY.
( Check to see what process is using up the most of the CPU. This will be your culprit.

"But wait you say the issue is with something called svchost.exe? Well that is a system process and
(you may not want to kill it)."

In this case I would recommend a program from SysInternals called Process Explorer. It's like Task Manager only more informative. svchost.exe is referenced by a lot of things and

this tool will allow you to see what is part of that particular svchost instance.

This hopefully will give you enough information to find the program that is causing the issue).

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Blame the patient
Feb 28, 2008 2:19AM PST

Dear Dadsgone,

One summer in the 80's I got pneumonia and went to public health. They prescribed an antibiotic and Theodor decongestant. About a week later I was back in the clinic with severe pain. I was doubled over. The doctor said that I was an alcoholic and that my liver was failing.

I knew that wasn't true and went home and read in the PDR that one should never, ever prescribe Theodor with that antibiotic because it will cause severe liver damage.

Well Dr. Dadsgonewhere? I'm glad you find it funny. You know SO much and I am just a patient.

By the way, your other prescription for Process Explorer. Weeks ago I downloaded and tried it. What a system hog, and the helps were obtuse. If I wanted to take a course for the next couple of years that prescription would not be my choice.

Thanks for all the help Doctor.

Sincerely,
Art O'Shea

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proof is in the pudding.
Feb 28, 2008 7:07AM PST

There are thousands that will stand by me and what I said.
and tell you that if you had a problem with Process explorer,
there is something wrong with your POS. or you did something wrong.
You know how many people here suggested that program, let alone tens of other places like this on the web ?
It doesn't even install locally.
You analogies and such tell me you're 5150 and way to full of your self and to smart for anyone to tell you or teach you anything.
Either way you just keep proving what I said and how you are with every word you type.
Your little funny with my name didn't even come close to anything.
Don't start that childish garbage.
Learn.

Now DADGOTDOWN
and DADSGONE!

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Sorry
Feb 28, 2008 9:22AM PST

Dear Dr. Dad,

Hmmm? No sense of humor? That is the first sign of insanity. LOL.

Your diagnosis of my being full of myself is really funny. You really are guilty of this yourself as well as BS.

Something I heard one time really applies here; "Don't try and get in a battle of wits with me because you are unarmed."

Your wisdom overwhelms me. Like Job said to his accusers; "You are the people."

I stand rebuked. You have such wisdom, and a heart that is beyond comprehending.

May God richly bless and keep you and yours in heavenly places in Him.

Sincerely,
Art O'Shea

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Hardware Issue
Feb 20, 2008 3:56AM PST

Hi Anthony!

I've been working as a computer technician for the past 4 years, and tinkering around with computers for the past 2 decades. I've seen several times the processes pile up and bog down a unit to the point of unusability. I'd say about 60% of the time it is related to a Hardware issue, where the unit is overheating due to debris and lint trapped in the heatsink and cooling fans associated with cooling the system. the other 40% would be attributed to cleaning up any unwanted processes running, I.E., last weeks question about registry cleaners. If there is any questions, please feel free to message me back. Thanks!

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Potential winning answers
Feb 22, 2008 4:11AM PST

Here are the selected submissions grouped in one post. Read through them and place your votes in the newsletter poll.

Answer:

CPU Usage Stuck at 100%


There are many things that can cause a computer to show 100% when you display the CPU usage. Spyware, viruses, bad drivers or damaged programs can all lead to this type of problem. In some cases, it can be a known issue with your specific model computer, so you should first check the website for your computer to see if you see anything there regarding this issue. If not, then there are several ways to approach this problem.

1. BACKUP Your Data ? Sorry but I can never say this enough. You should never work on a computer without first backing up any critical data.

2. As mentioned above, check your manufacturer?s website for any known problems with your specific computer model.

3. System Restore ? If the problem just started within the last few days, there is always a fair chance that running a Windows System Restore and setting your computer back a few days may solve your problem. But if you have had the problem for awhile OR you have installed a bunch of programs or updates recently then this may not work at all. System Restore can be found by going to START > ALL PROGRAMS > ACCESSORIES > SYSTEM TOOLS > SYSTEM RESTORE. Note: I would not recommend going back more than a week or so.

4. Virus and Spyware ? I can only assume that you already did this but a computer that is infected with viruses and/or spyware can exhibit this type of behavior. So make sure that your computer is totally clean by running full virus and Spyware scans. You may even want to double check by running one of the many free online virus scans.

5. Identify the Process - See if you can identify a specific process that is using the most CPU percentage. Use Ctrl+Alt+Del to open task manager and click on the processes tab. Scroll down through the list for any process that has the highest CPU percentage. You can try to end that process and see if that helps and then Google the name of the process to help figure out what it is. You may luck out and find the exact program to uninstall or update to fix the problem. But, in most cases it will turn out to be one of the many generic windows processes and may not really give you any real clue as to the exact problem.

6. Disconnect Peripherals ? Shut down your computer and unplug all external devices such as Printers, Scanners and Backup Drives. Leave only your Mouse, Keyboard and Internet Connection plugged in and reboot your computer to see if the problem is still there. If the problem goes away, plug things back in, one at a time until you have isolated the problem device.

7. Shut Down Startup Items ? Use msconfig to Shut down all startup programs and reboot the computer to see if the problem goes away. If it does then go back and methodically turn back ON individual startup items until the problem returns. Once you isolate the offending program, you can Google the name of the file to find out which program it is related to. To use MSCONFIG click on START and then RUN and type msconfig in the run box and then click on OK. Click on the STARTUP tab and you will be presented with a list of items that are going to run automatically every time the computer starts. You can select or deselect any items the you want to start when your computer boots. Now click on OK and reboot your computer. You can go back anytime and run msconfig to turn back on any items that you choose until you find which one is causing your problem.

8. Update all drivers for your computer ? Go to the website for your computer and download and install the latest drivers for your computer. Start with Chipset, Video, and Sound drivers first, followed by network, modem and others.

9. Update Bios ? In some cases the Bios may need updating, but I would stay away from this unless you really know what you are doing, because you can permanently damage your computer if you mess up during this process.

10. Problematic Programs ? There are many programs that have been known to cause this type of problem. For example some earlier versions of Kodak Easy Share software had this problem. Norton and some other antivirus software can become corrupt and cause this issue as well as software and drivers associated with many All-In-One printers. You should suspect any program that calls home for updates as well as file sharing programs like kazza and limewire. Other VOIP software such as Skype can also be a problem. I would suggest uninstalling any programs that you do not need at this moment to help isolate the problem. NOTE: Do not uninstall anything you want that you do have a way to reinstall such as having the original CD?s or downloads.

11. Full Recovery or Reinstallation ? If all else fails then you may have to resort to a full system Recovery or a reinstallation of Windows. This would be a last resort, but can rejuvenate a computer to like new condition and for some problems, may even be less time consuming.

Good Luck and Please keep us posted as to what you find.

Dana
Wayland Computer

http://forums.cnet.com/5208-10149_102-0.html?forumID=7&threadID=284007&messageID=2705924#2705924

Submitted by: waytron

***********************************************************************

Answer:

Loop of death!


Anthony,

This is most certainly a software issue. Whether it is related to device drivers or Windows applications and services is hard to say at this point. Luckily, it is fairly simple to start the diagnosis.

Here is what I would do:

1. Continue to use your computer until the next time it starts to slow down due to the processor being overused.

2. Press CTRL+ALT+DEL on your keyboard to bring up the Windows Task Manager.

3. Go to the "Processes" tab in the Windows Task Manager.

4. Sort the list of processes by "CPU". This is a percentile representation of how much processing power each program or service that is running under Windows is using. A service is a program that runs invisibly in the backgrowund.

5. Determine which program is using all your computing power. It will be at the top of the list with a high percentage if you sort it by descending processor usage.

6. Once you know the name of the program that is hogging your juice, Google around a bit to answer these questions...
6.a. Do other people have the same problem?
6.b. Is this a virus, trojan or spyware program?
6.c. How is it fixed?
6.d. If it cannot be fixed, how is it removed?
6.e. What is the answer to the universe?

---------------------------

In conclusion, there are one or more programs on your computer that are misbehaving and you can mostly likely fix the situation by doing one or more of the following:

A. Applying updates to your software.
B. Modifying your configuration for either Windows or the afflicted program.
C. Removing the afflicted program.

It is not necessarily true that this program is in any way malicious, and I would not be too alarmed at this point. Some further investigation (With the power of Google and CTRL+ALT+DEL) will shed a lot more light on the situation.

Good luck, Anthony.

- Rob

http://forums.cnet.com/5208-10149_102-0.html?forumID=7&threadID=284007&messageID=2706255#2706255

Submitted by NoxTheOx

***********************************************************************

Answer:

CPU Lockups


Anthony developed a problem where by the CPU keeps going to 100% and either freezes the PC or slows it down to virtually standstill.

Hi Anthony, I had a similar problem and solved it with the following actions.
1. eliminate the possibility of a hardware problem by checking your hardware device manager. ( I use the shortcut of pressing the left windows button and the pause/break key at the same time)

2. remove the cover from your computer and make sure the CPU cooling fan is working and not clogged with dust. An overheated CPU can give you that symptom.

3. If you have gotten this far, it is NOT a hardware problem. Now lets move on to Software. When your computer first boots, let everything standard load up and then press Ctrl-Alt-Del. Click on the processes tab. along the top of the process list, click on the heading CPU. This sorts the processes in use by how much they use the CPU. (you may have to click it 2x to get the high useage at the top of the window) The "System Idle Process" should be over 90% in normal working mode.

4. Drag the process window out of the way and use your computer normally. When you notice that the system is bogging down, drag your process window out and see what is causing your high activity level. Click on that process to highlight it, then click on the END PROCESS button.

5. This should improve your performance, but be aware that some processes are smart enough to restart themselves. In this event, you will see the one you just closed magically reappear. If so, a little detective work on the process name should let you know what program is using that process.

6. If you think you have found the culprit, don't just start uninstalling programs. see if you can disable it first. Many times the offending program can be found loading itself at bootup. You can see a list of these by clicking your start button, click RUN, and type MSCONFIG at the prompt. The window that opens has a tab called STARTUP. Look through the list and see if you can find your offender there. if so, just uncheck the box(s) next to what you want to disable on your next reboot.

7. If you can not find an offending program that YOU installed, you should run a Spyware checker (Spybot is one of my faves) After you clean up your spyware... empty your cookies, and delete your temporary internet files (internet explorer, tools, internet options.)

8. 9. & 10...couldn't think of anything more to tell ya other than you are not alone, it is fixable, and you WILL get to the bottom of it all.

When I had this problem the offender was McAfee SPAMchecker. Although I have a great respect for their virus protection, their e-mail spam protection drove my system NUTS! We were having rolling brown-outs from the power company and that program would glitch into an endless loop. I used the above items and disabled the program. problem solved.
Cheers to you mate!

http://forums.cnet.com/5208-10149_102-0.html?forumID=7&threadID=284007&messageID=2705653#2705653

Submitted by PBaker2

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Running At 100%
Feb 22, 2008 11:19AM PST

I'm not to savvy when comes to computers, but I would suggest running free AVG virus scan, spybot, AdawareSE and Window Washer 4.7 or later. There is also a couple little programs I use, such as, ZD Startup Manager, just disable everything and reboot, plus there is also a little program called Omemory optimizer, which works quite well. Lastly after all that Defragment your PC. Good Luck

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Problem with 100 CPU
Feb 23, 2008 4:43AM PST

Wow! you folks are worth sumptin after all, For the last this past week has been, well its been! I had been working on an article and almost on schedule my computer or should I say my word perfect program would lockup and then I noticed on the Task manager it was pegging out at 100 CPU. With the information I now have Thanks to yah
I can start my hair replants immediately and my slobbering and druling has stopped as well! Thank you'all at C/Net. I want have to go to the Nut house for this anyway.

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cpu 100% used
Feb 24, 2008 1:15PM PST

hello

Your cpu has been 100% used so there is major problem.

1)U Have Check the cpu Fan is working or not?

2)U have Check His gum stick above processeor?

3)Windows problem?

4)If Processeor is hit many more then hi use 100% so Processeor problem.


Please u have go to the step by step and comfirm to me your problem in above or not ?


Chirag Mehta

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100% CPU
Feb 22, 2008 11:09AM PST

Suggestions:

Have we ruled out viruses? Do you have any screen saver (such as BIONC) running in the background? Do you have the correct drivers for your boards (video, audio, etc)?

Some viruses hijach your CPU and run all available assets to the max leaving you only able to reboot.

Some screen savers and/or background programs can snag your CPU and not let go.

Finally, the wrong drivers can cause your CPU to use excessive resources to try to compensate for errors in dealing with peripherals like video cards, audio, network, etc.

Recommend the three finger salute (ctrl-alt-delete) to get to the task manager and then select the Processes tab and see who is chewing up your resources.

If it is an unknown process, time to run an anti-virus program. If it is a saver of some variety, loose it, it's killing you. If it's a driver, go hit www.driverguide.com and try to find the right driver.

Cheers and good luck. Personally, I take my machine to my local Mom and Pop computer shop and let them hunt down the goblins.

Best of luck.

Cheers,

Richard Eklund
ITWorkz
512-589-6410

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processer fan
Feb 22, 2008 11:09AM PST

all the other advice was great just one other area to look at the fan that covers the processer may be dirty i had that problem on my hp computer since it's in a area that has a lot of dust and lint in the air so a clean unit with lots of memory and only programs running thats needed and you should be dine, I would say if you use nortons you may want to get rid of it and go with avg anti-virus which is free and works better than nortons and uses less memory.

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Windows Automatic Updates Likely The Cause
Feb 22, 2008 11:32AM PST

I have the same problem on my computer and after much frustration discovered that this issue is caused by Microsoft Office 2003 being installed and Windows Automatic Updates being turned on. Try turning off Windows Automatic Updates and see if that fixes the problem. It did for me!

I opened up a trouble ticket with Microsoft, but they were unable to provide a solution, so I decided to close the ticket rather than go on and on working with them to find a solution (beside turning off Automatic Updates).

There has even been a Microsoft "hot fix" to attempt to solve the problem (Microsoft has to provide you with the update - it's not readily available online).

Perhaps SP3 will fix it.

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Be Careful
Feb 22, 2008 12:46PM PST

The problem could also be caused by lack of Windows Updates. If you do noy automatik updates and you do not make manualy running your Windows updates regularly. I just checked I reinstalled Windows XP on January 17 2004. since then automatic updates has installed 716 updates an average od 3? each week. Only about 200 of them ( Random Sample Extrapolation)were to fix slow or faulty operations. Most were security issues (so that a hackes can not get in and slow down your computer).

IF YOU ARE NOT GOING TO DO UPDATES Don't use a Microsoft O/S

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microsoft update
Feb 26, 2008 5:34AM PST

Hi ,

Had a similar problem.

Microsoft had done one of its automatic updates and about the same time Nero said it needed to be done. but instead of an update it tried to install a thirty day trial of Nero 8. At about the same time i chose to update spybot. And within weeks , my brother all in one printer failed and I brought back an old hp all in one and had to install new drivers. I couldn't work 5 minutes without freezes and error messages. And as I was trying to figure things out. , found that I was unable to run defrag because there wasn't enough room on the hard drive.
Hard drive is western digital 80 gig and i was using 26 gig. With a lot of reading, I founf theunused space on the hard drive and made it usable and placed all my documents in there , and at least now was able to run defrag. Although it did not cure other problems.

System restore did not accomplish anything, kept saying it was unsuccessful no matter how far back i went.

I uninstalled the new spybot. Went to uninstall the windows update and it said many programs might be effected. So I didnt do it.
Worked with the Nero people to no avail. Not all there fault. I had my original receipt from purchasing a year ago and the upc code but could not find the original disc.

Also tried to uninstall the hp printer but was unsuccessful for weeks, until the fourth person at hp finally sent me into BIOS.
Still have an open ticket with Microsoft. Called Dell (manufacturer, actually support was in the Phillipines) , they patiently had me download drivers( didnt have them with my original discs) and then reinstall windows xp.
It is like having a brand new machine. Everything works fine.
Microsoft now wants me to install 89 updates. They won't say which ones are critical. I have turned off their automatic updates.(as an aside , had a similar problem five years also involving windows automatic update, turned them off - after someone from microsoft had me into CAB files and said no more updates for that machine-and that win 98 hp computer is still working fine and dandy)

Microsoft keeps assuring me that I need all the updates and that if there is a problem we can go back to a restore point. They can not tell me why a restore point would be successful now , when it hasn't been in the past.
There is a definite language barrier dealing with them. They also take four or five days to answer each email.

I spent weeks trying to fix the issue.I do keep an external hard drive back up and also back up to discs. Before i tried anything else I also used google to email myself all my documents.

I did follow most of the other suggestions here, including spring cleaning the tower, keyboard and mouse. and got a brand new can of compressed air.

When everything was up and running properly , i waited two weeks and added 2 gig of memory to the 512 I had.

Am sure if you follow the excellent suggestions here , you will succeed. And as Bob said , back up what ever is at all possible, even though with the freezing it may take a very long time, in the long run it is worth it. You may also find, as I did that it is a wonderful opportunity to get rid of stuff you no longer need or want.

Paula

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Updates
Feb 27, 2008 2:01PM PST

Hello Darlin.
As far as seeing which are critcal there are options at Windows Update
To show those, infact, You can break ir down in several ways.
Just look closely.
And it's not a good idea to install a bunch of updates at the same time.
and there are those that have to be installed by themselves.
They will tell you those. usually.

You did right by turning off auto updates.
If you remember you can tell it to tell you and that's it, once a month or something but no real need.
IF You remember to check Windows Update in your start menu.
OR
http://www.update.microsoft.com/windowsupdate/v6/default.aspx?ln=en-us

BUT You still have to have Auto Updates turned on they say, atleast for the time they need to look at your system and see what they say you need.

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priority windows updates
Feb 29, 2008 8:28AM PST

Well I do thank you kindly Dadsgetndown.

However, In the old days I could select which updates I wanted and which I didn't.

I just reran priority updates. The only option is Intstall tried selecting that figuring it would then ask me to select which ones I wanted. It asked if I accept microsoft terrms. I did.

It immediately began the download, which I aborted.

I totally agree things should be installed one at a time.

But given it did not give me the option of even which to download, and my current level of confidence in microsoft I do not trust that is what will happen.


I am still in slow communication with microsoft.

They continue to get miffed when i take two or three days to answer them , although they continue to take 3 to 4 days to respond.

They are clear that I should just install all 89. They have not addressed my lack of confidence in using system restore should the updates cause a major problem that can not otherwise be removed.

I am certainly open to any other ways to select specific downloads.

As you can see below inside my asterisks. They do not give the option , the first time you go to updates, to be selective.

Paula


Review and Install Updates

Install Updates Download size (total): 61.4 MB
Estimated time at your connection speed: 1 hour 10 minutes



Restore and Check Again Only ***********selected updates will appear the next time you check for updates.************










High-priority updates
Microsoft Windows XP



Security Update for Windows XP (KB896423)
Typical download size: 494 KB , less than 1 minute
A security issue has been identified in the Print Spooler service that could allow an attacker to compromise your Microsoft Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Cumulative Security Update for Internet Explorer 6 for Windows XP (KB944533)
Typical download size: 1.3 MB , 1 minute
Security issues have been identified that could allow an attacker to compromise a system running Internet Explorer and gain control over it. You can help protect your system by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB946026)
Typical download size: 132 KB , less than 1 minute
A security issue has been identified in the mrxdav.sys driver that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Windows Malicious Software Removal Tool - February 2008 (KB890830)
Download size: 7.4 MB , less than 1 minute
After the download, this tool runs once to check your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps to remove any infection found. If an infection is found, the tool will display a status report the next time you start your computer. A new version of the tool will be offered every month. If you want to manually run the tool on your computer, you can download a copy from the Microsoft Download Center or run an online version from microsoft.com. This tool is not a replacement for an anti-virus product. To help protect your computer, you should use an anti-virus product. Details...


Security Update for Windows XP (KB943055)
Typical download size: 153 KB , less than 1 minute
A security issue has been identified that could allow an attacker to remotely compromise your Windows-based system using Object Linking and Embedding (OLE) Automation and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP with Windows Media Format Runtime 9 (KB941569)
Download size: 2.1 MB , less than 1 minute
A security issue has been identified that could allow an attacker to remotely compromise your Windows-based system using Windows Media file formats and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB941644)
Typical download size: 158 KB , less than 1 minute
A security issue has been identified in TCPIP that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Update for Windows XP (KB942840)
Typical download size: 182 KB , less than 1 minute
Install this update to increase the performance of web sites that use Ajax. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB943485)
Typical download size: 189 KB , less than 1 minute
A security issue has been identified in LSASS that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Update for Windows XP (KB942763)
Typical download size: 103 KB , less than 1 minute
Installing this update enables your computer to automatically adjust the computer clock on the correct date in 2007 and 2008 due to revised Daylight Saving Time laws in many countries. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB94156Cool
Typical download size: 246 KB , less than 1 minute
A security issue has been identified in Microsoft DirectShow that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB944653)
Typical download size: 118 KB , less than 1 minute
A security issue has been identified in the Macrovision Driver that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Update for Windows XP (KB936357)
Typical download size: 331 KB , less than 1 minute
This is a reliability update. Install this microcode update to improve the reliability of systems with Intel processors. After you install this item, you may have to restart your computer. Details...


Windows Internet Explorer 7 for Windows XP
Download size: 14.7 MB , less than 1 minute
This free upgrade to Internet Explorer customers offers improvements such as enhanced security, a cleaner look, and features to make everyday tasks such as printing and searching the web easier. This upgrade preserves your current home page, search settings, favorites, and compatible toolbars, and can be uninstalled if you decide to do so. Details...


Security Update for Windows XP (KB933729)
Download size: 855 KB , less than 1 minute
A security issue has been identified that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Outlook Express for Windows XP (KB941202)
Typical download size: 139 KB , less than 1 minute
A security issue has been identified in Outlook Express that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Security Update for Windows XP (KB936021)
Typical download size: 579 KB , less than 1 minute
A security issue has been identified in Microsoft XML Core Services (MSXML) that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details...


Update for Windows XP (KB93882Cool
Typical download size: 193 KB , less than 1 minute
This is a reliability update. Install this update to improve the stability of computers running Windows XP. After you install this item, you may have to restart your computer. Details...

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I'd suspect Spybot there
Feb 28, 2008 1:28PM PST

there new version was released too soon, full of bugs, even after uninstall it has ghosts everywhere. reformat required. avoid Spybot until it retracts/fixes real time protection in free edition.

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cpu
Feb 22, 2008 12:01PM PST

Hi although the fan may appear to b working its reall not cooling the cpu down what u really need to do is replace your cpu fan also put a case fan in if its possible and u will see u wont have that problem hope this helps

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CPU
Feb 24, 2008 5:25AM PST

You can check for dust build up on the heatsink this maybe your problem

good luck

bye for now

Ian

keep smiling
Happy
Be Happy

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Check this info out
Feb 22, 2008 12:23PM PST

While most all of these answers touch on the things to look for, you might want to check out this well known HP problem. I have been building/repairing computers for over 20 years and I have encountered this problem in one form or another frequently over the years. If you have an HP printer, I would suggest you try this first. If you are not using an HP printer, then I would follow the suggestions that guide you to check your running processes and try to pinpoint the guilty party. There are other process checker utilities you can search for on the web that are better, or provide additional capabilities. The MS Knowledge Base article is here: http://support.microsoft.com/kb/299956 There is also information on the HP site on a number of their printers that can cause this problem. Just search their support database for 100 percent CPU Utilization and you will find a number of known issues with their printers related to this. Best of luck to you! SemperFi

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CPU@100%
Feb 22, 2008 12:25PM PST

I have the task manager running at all times with a dark green icon in the system tray. I recommend doing this. At a glance, you can tell what is going on because the icon rises in neon green to the level of CPU being used. Having the CPU usage go up to 100% happens frequently at MySpace. I take this to mean that badly made websites wreak havoc on one's computer - and some of those profiles are very badly made. Not being too much of a geek myself, I don't know what characteristics these sites have that cause the problem - maybe java or flash, maybe something else. When my icon shows 100% at a bad site, I try to just get off of it before everything freezes. Also, in my case, sometimes it's the browser. I use Opera, and if I really want to see the site, I'll try a different browser. Usually, it's just a bad website, but sometimes another browser can handle it better.

I did have a problem with software that caused this as well. The best thing to do is to look in the task manager to see what is going on - but if it is a browser, you can't assume that it is the browser itself, because it could be the website.