I'm trying to run a checkdisk diag from WinXp Pro CD. I am being asked for the Admin Password which the owner of the PC doesn't know (or remember). How do I get past this problem? Her PC just continuously reboots after getting a trojan flood virus, never actually getting to the Windows desktop. I see the HD light glow red when the PC starts to boot which indicates trouble. I want to run the checkdisk diag from the recovery prog on the CD but we don't know the admin password. Can anybody help?