hi all ive been trying to repair windows on a friends pc we booted off xp disk then selected r for repair. in the next screen it said select number for the op system which we wanted to repair so pressed 1 but then what key do i press nothing happens . and it says the enter key is to cancel repair?. i am trying to repair windows as it wont boot and says system 32 file is missing or currupted.files not backed up either. any help with which key to press to progress repair would be great