Hi, my laptop has the windows/system32/config/software so I knew i needed a install disc to repair my computer but I tried using the windows vista ultimate from my main PC to repair the laptop which has windows vista home and all i got was a black screen with a flashing cursor. Does this mean I cant repair my laptop with ultimate(also I don't know if this means anything but on the back of windows vista ultimate case it says OEM software)? Any help appreciated!