I hope someone can help me with this problem that has been ongoing for some time. I have a Dell Studio XPS with Vista 64 (service pack 2) and 8 GB RAM. The c drive has been loosing storage like mad. I got WinDirStat and found I had a lot of space taken up by photos, most of which I have moved to an external hard drive. When I started moving photos I managed to get from less than 1gb of space (on 134 gb c drive), to almost 30 gb free. I managed to keep it for a couple of weeks, and now all of a sudden after trying to re install a printer (that the computer will not recognize, even though it was on an older Dell with Vista that just recently died), I have gone from 30 gb down to 3 gb. Today I moved more photos and got back to about 11 gb free, walked away from the computer for 5 minutes, and it's now showing less than 3 gb again. I ran a deep scan of my security program (Norton 360, but it only found some cookies), and I also did a disk clean up, all to no avail...the gremlins have completely taken over! How do I get rid of them???