So I was trying to fix a coworkers computer that has been without antivirus for a year. I installed avast V 6 and ran the quick scan. No viruses, which was a lie. I then ran a boot scan and there were 2700 problems found. I selected repair, but only half complied, so I then quarantined the rest. It was working ok, so I unplugged it and carried it to another room open. It was unplugged and unobserved for less than a minute, and when I looked back at it, it was continuously rebooting. "Last good configuration" yielded no results, but safe mode worked. I restored the quarantined files, but it did not help. I was able to turn off the automatic restart and see the Blue Screen Of Death, which said IRQL_NOT_LESS_OR_EQUAL. There were no problems with hardware before scanning, and some of the viruses found were parite and runner, if that helps.
