If so, you can boot any number of LiveCDs (I use Ubuntu since it's free, does not need installing and I don't have to know it's Linux) that you can boot and clean up.
My Windows XP computer which had been working perfectly froze up today after copying and saving some pictures from a university lichen website. During copying a script problem notice popped up and I chose the "end script" box in lieu of the "continue" one. When I tried to open one of the pictures the computer froze. After a normal restart it immediately froze upon reboot it with the window "Windows Explorer has encountered....and needs to close" popping up. I then tried a system restore to an earlier date with the same results. I also tried safe mode and all of the other startup options when F8 is pressed but the same thing happens. I feel that if I could delete the downloaded pictures I might be able to restore service but I have no way to get at them. I doubt anyone has a solution but thought I'd ask anyway out of desperation.