You can create a new restore point, and delete the previous ones. I dunno which OS you are using, though. You'll want to first, if you're clean, go to Start Menu > Accessories > System Tools > System Restore and create a new one. In XP, you go to Control Panel > System Tools (I think, on a Vista right now) > "Clean up space on your hard disk" After it sees the room you can get with compressing files and whatnot, there'll be a More Options tab. If you select that, itll have a option that will delete all but the newest Restore Point. On Vista...Lemme see... It would seem to be something like: Start Menu > Control Panel > Performance Information and Tools > click on the side where it says Open Disk cleanup. I assume it'll have the option there.