I was facing an awful lot of BSODs and was also infested by PE_Sality.ek virus.SO I cleaned with Malwarebytes and then freshly installed Vista(primary) and seven(secondary). I am still facing the same errors after re-formating 3-4 times.I used Nirsoft Blue screen viewer and have attached the drivers which were probably creating problem.. Please tell which software is causing these crashes..I have written in lot of forums without any luck... Please help me... http://www.mediafire.com/?450sb02w5c4tmad

Hi, According to your description, the issue persists after reformatting the hard drive, the root cause can't be within Windows. We can consider on the hardware side, for example BIOS and motherboard. Regards, Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.