Hi, at boot up I got this message. Tried to repair with the vista disc but that did not work. Tried lasy known good configuration / safe mode etc etc and then suddenly it did actually boot up OK. Turned it off again, on again and same problem. Tried repair with disc again, still no joy. Tried and tried and then it booted up again. This time I tried system restore to a week before this problem started. Turned off, re-booted and blue screen again. Same old story, finally got it to boot up and now I have it on hibernation mode and am not shutting it down. Any ideas how I replace this file or am I going to be forced to do a clean install again. I really hope not. Regards to all.