its called format c:\
I keep a lot of stuff on a second HD in the computer, and I keep it locked and firewalled. Never have a problem with that one. The one that has windows and AOL and IE, if it gets hacked too much then I just format and install everything back off the other hard drive. Takes me little more than an hour to do everything.
I wipe my hd clean every few months anyway...keeps the hackers at bay.