System randomly not responding

I just did a fresh install of Windows 7 yesterday and now my system randomly stops responding. Im not sure what steps I should do to troubleshoot this? I dont wan to have to do another reinstall.

Does anyone have some sort of free diags or some troubleshooting steps to isolate the issue? It was working find before the reinstall, I just did it to clean up all the old applications I had installed on my system.
Thomas NSystems Analyst - Windows System AdministratorAsked:
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Russ SuterSenior Software DeveloperCommented:
That's a fairly broad description of a problem.

When you say it stops responding does it start again or just permanently lock up? If the former that is more indicative of an I/O error. If the latter it may be memory.

If you want to put the system hardware through it's paces you can try memtest (http://www.memtest86.com/).

I've used it in the past with great success.

Also, depending on the hardware model, there may be a pretty good diagnostic tool built in to the BIOS.
nobusCommented:
why did you do the fresh install ?  what were the sysmptoms?
was it also not responding?

then yes, i assume you have hardware problems; below is how i troubleshoot it
but if the problem arises not frequently - testing is not the best way - better use the swapping out of parts, like disk, ram, cd drives etc..
http://www.experts-exchange.com/Hardware/Components/Motherboards/A_1945.html                  (Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post)
http://www.experts-exchange.com/Storage/Hard_Drives/A_3000-The-bad-hard-disk-problem.html

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Windows 7

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