hi i was wondering how do i wipe my computer free of virus. my computer starts up. then when you get ready to log in. it lets you log in but, then logs you directly out. even in safemode under the administrator it does the same. can someone help me? it also won't let me boot from backup cd or windows xp professional cd. i also changed in the bios to boot from cd-rom. the viruses made my cd-rom drives in-operatable.