I am using windiws 98 se with 256 ddr ram AMD 1.33 gigs geforce 2 video 64 megs 30 gig western digatal smart 2 SIS735 chip set ran disk defrag a month ago ran good now every time I run disk defrag msg says data changing & restarts will not complete all so check drive for errors states that i have programs running in the backround or a program is writting to my hard drive & keeps restarting I am using AVG virus program turn it off went I defrag only the virus program states everything is good all so smart 2 says everything ok How do I find out whats running in the backround{tried ctrl alt delete} & find out what is changing data on my hard drive thank you