Hello, I've installed Widows Vista over my Windows XP, and so all of the Win.XP folders were moved into a Windows.Old folder, which I removed. Today I ran a AntiVirus scan, and found a spyware in an old system restore point. Turns out the system restore points of my old Win.XP weren't moved or deleted, and they are in the System Volume Information folder on my hard disk. I've deleted the spyware(which deleted the whole restore point which I don't need anyway) and it freed up 9 GB on my hard disk. I wanted to see if theres more useless restore points and I've taken ownership over the System Information Folder, and it got 5.5+ GB in it, and I'm sure I only need 1 restore point(Vista's one). I've got a folder named "_restore{48666ED3-4CFB-43E0-A8D5-7A02B7134805}" which weights 2GB, and has alot of files last modified a month ago, and some modified today. Also a big "A0029234" exe file modified before I installed vista and weights 1.4GB. Besides that another 1.9GB file in the main System Volume folder named "{cb9f99d2-b373-11db-95e7-9a08148be690}{3808876b-c176-4e48-b7ae-04046e6cc752}" which I belive that belongs to Vista, and was modified last today. My question is this - Which files are safe to remove in the System Information Volume? Or alternaitvely - Can anyone recommend a good software that can check that? Maybe I should delete Vista's restore point, then delete the content of the folder, and make another restore point? I'd like to remove all my old Windows XP system restore points and other useless stuff on the System Volume Information Folder. Thanks in advance. P.S - I did try using the Disk Cleanup, but I don't think it even checks for Windows XP restore points.