How do i reformat my computer?? he i am running windows xp the buisness edition and i am having a lot of problems my computer has so many errors that i dont know what to do to fix any of them. For instance i cant run winpwn at all it wont even open. So i guess i n eed to reboot but i dont have the xp software disks or anything so i need to know how to go about rebooting my comp. pleas help as much as you can.