I have a DELL optiplex 745 that has windows XP on it with a corrupted operating system. It is telling me to run a repair on windows. I need to know if I should be using a windows xp sp2 or sp3 disk to run the repair. It came with sp2 loaded on it. I saw that on the dell original configuration page, by warranty status. I am not sure if it was upgraded to sp3 though. Is there any way to know, with the recovery console what service pack is on it so I can use the appropriate disk to repair the os? is there any other way to dell without booting into windows. It will not boot into even safe mode.