HI! I am using windows XP on a dell 8400 dimension. Got infected with a few viruses, got rid of them but now my computer is a mess and getting worse. Accordingto dell, I should be able to reinstall XP without the cd by hitting Ctrl and F11 on reboot. I guess it is stored in there and it should bring it back to original state when I bought it. When I reboot and do this I get Sata drive 1 not found and then 2, and then 3. Hit F1 to continue. I really need to wipe this computer or try to repair but have no CD. Can any body help? Liz E.