Error updating kaspersky rescue disk image
If not it may be that you've picked up something nasty that's killing kaspersky and you might want to try running the scan from safe mode.
There's one other obvious possibility...you're infected by a virus that is actively causing Kaspersky to fail.
I'd suggest downloading a second virus scanner, running that to see what happens (Make sure to uninstall afterwords..only thing that slows your PC down more than an antivirus is TWO antivirus apps) I don't fully remember what the XP interface looks like anymore (been on & a while), but I had the problem where it scans 1 or 2 files (1%), then simply hangs and the time remaining climbs into #days.
Closing Kaspersky and running it in compatibility for XP SP2 with Admin rights enabled solved the problem for me.