Hi! I suppose the title is pretty strait forward... I need to repair windows because no matter what my computer keeps restarting. Even when I go into safe mode and Last known good configuration. But when I go to repair windows, it goes past the agreement then says: "Setup could not read the CD you inserted, or the CD is not a valid Windows CD." Its says Microsoft Windows XP Home Edition on the CD and says Upgrade on the top... So am I able to use this CD to repair windows??? Thanks for any help!