Ok guys, I want to reformat an old PC with Windows 2000. It has two hard drives, one 10 gig with the old OS, which I will discard, and one 40 gig, which I will use to install Windows XP. Problem is, I don't know how to reformat the drives! This is the first time I've needed to reformat and reinstall an OS, so I'm a little clueless. Could you help me out?