Did you, possibly together with a co-worker, actually try that route of manuallyrepairing the Windows install? If yes, did it do any good?
Yes, I just tried that and it did work. So at the moment, I have a working Win7/linux machine with the linux part installed via FAI. The message the Windows repair said was that there was a problem with the Windows startup options, asked me if I wanted to repair them and reboot. I said I did and it rebooted.
