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Lennart EricsonFlag for Sweden

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Windows 7 freezes all of a sudden

Have a table top computer, six years old. Works normally very well, but has all of a sudden frozen. After restart it works for between two minutes up to a half hour. Then freezes again. I wanted to hear from you experts and gurus where you suggest I start the investigation. Software or hardware? If hardware, what to test first? Any idea is welcome.
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thanks for your reply. I will test your suggestions. Let me just mention the computer has run Windows 7 for quite some time now, so therefore I don't think the error is related to Windows. I'll report when I have tested your suggestions.

// lericson
Also can try clean identify whether its software issue.

Clean boot process

Start-type - msconfig- click on startup tab- click disable all...then click services tab- put a check on hide all microsoft services ...and then click disable ok and then restart the computer in normal mode.

If everything works fine in clean boot then enable five startup items and services at a time to find the faulty software.

Also it could be a graphics driver issue...boot the computer in vga mode and check..if it does not freezes then problem with graphics driver...update graphics driver.

Used SpeedFan to check. Think the GPU temp might be on the high side. Do not really know what is high and not high teperature.
My GPU is at 60 and CPU at 40 (it has been idling for a while as I was away this morning). So your temperatures do not seem too high.

Check your memory fully, and if you have a general PC test like PC Doctor, check out all your hardware.

Then check out drivers for any updates you can get. ... Thinkpads_User
The temp of the CPU increases. Now it is near the boiling point.
My GPU is now at 61 and CPU now at 41 and the machine has been in use all afternoon, so yes, your machine looks like it could be overheating.

I would try arbitrarily resetting the CPU (use new thermal compound) and clean the fan. Do you know the fan is always running? Can you hear it?  Might it be shutting down wrongly because of a power management issue?

... Thinkpads_User
I did a little bit of cleaning...

It hasn't frozen once during the afternoon and evening.
Thanks so much for your advices!
You are most welcome and I was pleased to assist. ... Thinkpads_User