Problem with Windows 7 randomly restarting

[Jazzy47]

Hello I am Jazzy. I had win7 installed at my pc for about 6 months and It was working superb until I reinstalled it because of some problem caused by installing new themes. but now It restarts after some time without any reason, every thing is fine but still it restarts there is no virus nothing. So any help with that will be good
Thanks in advance

 

[DeaconFrost]

Do you see a quick blue screen before it restarts? If so, disable automatic reboots in the system properties, so you can see the message.

Did you make any hardware changes? Do you have a spare PSU to try?

 

[Jazzy47]

No thats the problem there is no blue screen when it restarts I have tried every possible thing but the problem in on.

 

[Jonathan_King]

Check out this thread: http://www.sevenforums.com/crashes-debugging/74985-random-restarting.html

To be honest, we are still working on that one. But wade through the first 5 or 6 pages of suggestions and see if anything helps you.

 

[hubris]

Hi, are you sure you got rid of every single bit of that "Theme stuff". ?

Sometimes reinstalling it, then uninstalling properly could solve it. ( Revo uninstaller )

What was this "theme" stuff. ?

 

[Jazzy47]

you know! installing themes by changing system files like explorer and shell32