I am running Win XP home on a computer. Win XP Home was just completely re-installed. There is 512 Mg and a 60 gig hard drive with 55 gigs open. The hard drive keeps spinning as if something is accessing it. I checked the processes and the only thing running is the "System Idle Process" at 98%. There is almost nothing left in the start up tray. Any ideas what could be making the hard drive constantly spin?