I am using a windows 7 and got a problem while using the pc. After some time of using it, unexpected shutdown is experienced. can somebody explain why is this happening? best telescope guy
After eliminating malware, try installing the free version of WhoCrashed (by Resplendence, google for it) and run it after the next spontaneous reboot to check the crash dumps. I had that issue and it turned out to be a bad RAM stick - WhoCrashed told me something different every time in that case, so it was then a process of hardware swapping until I found the culprit.
might as well eliminate all the obvious, U r win7 isnt a pre release that has a time bomb right? i will also check event viewer and see what s in there.