First off assume I have everything I need backed up and all. And I just bought a new copy of XP. First question is; right now I have XP pro, and I dont have the disks so I am going to purchase XP, should I stick with Pro or is Home good enough? Second question is; what exactly is the best way to reformat? I know there are a plethora of programs out there, should I use one of them or what? Which program, which is free, is regarded to be the best? Please be aware this is the first time I have ever reformated a HD. Thank you guys.