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Resolved Question

Why does my computer keep restarting?

by BooAngie / December 11, 2013 9:07 PM PST

Within the last 24 hours, my computer has restarted 3 times. Yesterday morning, when I got home from work last night, and this morning. The box pops up that says "Windows has recovered from an unexpected shutdown...". I haven't installed anything new lately. How do I go about finding out what the problem is?

I have Windows 7. My computer is an HP 2311x and it's about 3 years old. Let me know what other information you need.

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All Answers

Best Answer chosen by BooAngie

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Let's start with simple.
by R. Proffitt Forum moderator / December 12, 2013 12:32 AM PST

When was the last time you cleaned the vents and heatsinks with canned air?

If you ask what is canned air or never, the odds are you need to do that work.

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by BooAngie / December 12, 2013 12:16 PM PST

I'd say it's been at least a year since I cleaned the inside.

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(NT) That's a good thing to try next.
by R. Proffitt Forum moderator / December 12, 2013 2:07 PM PST
In reply to: ..
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How was it then?
by richteral / December 14, 2013 5:20 AM PST
In reply to: ..

Plenty of dust? Do you keep your hardware in generally dusty environment? If so, do go for the compressed air can. If not, something else could be afoot.

You might try SIW ( to find out what is happening with temperatures; once installed, scroll down to Sensors under Hardware, and click on it.

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by pgc3 / December 12, 2013 12:35 AM PST

HP2311x is a monitor model number. It may be something as simple as blowing dust out of the system with canned air, over heating could be the issue. If the standard clean up has been done and the problem still exists boot to safe mode and see if the problem is still there, if it is the next guess would be a malware/virus infestation. First things first, check for excessive dust build up then try booting to safe mode.

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by BooAngie / December 12, 2013 12:16 PM PST
In reply to: Restart

Yeah, my computer is a p6733w. Sorry, I was half asleep when I posted this. I will trying giving it a good cleaning.


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by Murari_ctls / December 12, 2013 1:39 PM PST

If your computer is restarting then there may any virus in your computer. So you should use an antivirus for scan.

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computer restarting.
by pauly1651 / December 13, 2013 10:31 AM PST

When a PC acts the way you are describing, it is basically trying to "protect" its self.
There are a few things that can cause a PC to shut down on it's own, and then try to start on it's own.
One reason can be that it is so filled with dust inside, like all over the heat sinks, RAM, video card, power supply and vents blocked, that it overheats, and the BIOS is telling your operating system to shut down.
Another reason can be a faulty power supply, or the power supply is not securely plugged into the motherboard. There will be just enough voltage to kick on the PC but not enough to run all the components, so it shuts down to protect its self.
When I worked in an IT dept in a big casino once, we would have computers shutting down by them selves. We would take them outside and open them up and find them completely filled with dust and dirt. Many times, if they haven't fried themselves yet, or popped some caps, we would clean them out real good with compressed air, plug them back in, and boom, they would run perfect.
Many clients I have had don't seem to understand how important it is to keep the guts of a PC clean. Air flow is vital for the health of a computer, and keeping the heat down, by keeping it clean is primary.
Sometimes it will be a bad virus, or hijacking software or malware. Usually a good anti virus program can deal with that.
Also, swelled or burst caps can cause this problem, but taking it to a good trusted troubleshooting tech might be in order for this issue.

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by Zouch / December 14, 2013 12:00 AM PST

What everyone else said, plus a couple of thoughts.

You aren't getting temporary power spikes are you? They could be enough to restart some systems.

It may be worth disabling the automatic restart to see if there is a "Blue Screen" stop error. Here's how:

Then you may see the error, rather than just the restart notification.

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