I have an hp laptop, xp pro, 1 meg memory 3 gig processor. It suddenlty started rebooting over and over again. Long story short, the support people said it was a virus and mcafee is no good. reformated drive everything resintalled. Brought the system home, connected to wireless network and it started rebooting again. I downloaded nod32 , ran in safe mode but I it stops and I get one of two messages : 1 )  cannot open file. file in use, then scanning stops after 8,000 files 2) Error occured while scanning operating memory. Any help greatly appreciated.