PC Hardware forum

General discussion

cpu usage at 100 percent all the time, computer very slow

I have a Compaq destop with Windows XP Media center 2005, Athlon 3700, 2GB ram, 250GB hdd, intergrated video. Until very recently, it has been a great computer for us.

Lately, it has slowed down to a crawl. Even the fish screen saver refuses to move. It's just miserable!

I checked task manager performance and the cpu is running at 100% almost all the time. When I switch to the apps tab, there are no apps running! When I checked services from task manager, I found a line called svchost.exe using 99 percent of the cpu. I'm afraid to do anything with this because it's beyond my scope of knowledge. Is this my problem, or is there something else going on? Sure would appreciate any help to get our "baby" back to its normal performance.


Discussion is locked
You are posting a reply to: cpu usage at 100 percent all the time, computer very slow
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: cpu usage at 100 percent all the time, computer very slow
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
you've probably picked up some crapware

In reply to: cpu usage at 100 percent all the time, computer very slow

something's chewing up your cpu. could be malware, could be something misconfigured.

but considering the age of your pc, i suggest you go through your installed programs and delete everything you don't use and then go through you startup programs (using msconfig) and disable anything you don't use. if you find you need it (something stops working), re-enable it.

but the best thing to do is to do a reinstall of xp (assuming you have the install discs and 3-4 hours to spend). the pc will run like new again.

Collapse -

In reply to: cpu usage at 100 percent all the time, computer very slow

First thing you have to do is run a Virus Scan and Spyware scan. Because Malware can use up your System Resources. If Malware is found, i suggest you remove it.

Also what you can do now is remove unused software. Cause they tend to eat few system resources.

Remove startup applications:
Start > Run > msconfig.exe > Startup Tab then remove the programs you dont want running on startup.

Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Sublime suburban chariot

High on style and technology, the 2019 Volvo XC90 is an incredibly satisfying everyday crossover.