Oh, I used Windows Loader to genuinize Windows 7. Problem is that windows suddenly won't boot, and it tells me to boot from an install disk to perform a repair. Trouble is: it seems like the repair option is lost when using Bootcamp, could it be that the windows installer is not recognizing the windows partition? Any thoughts?
diskpart? sounds like a lot of trouble and time, next time it would probably be a better and cheaper idea to buy windows...
Solved Problem solved: 1) Installed PARAGON ntfs for OSX 2) Made a new empty folder on the presumably empty Bootcamp drive. After a few seconds the content of the drive showed up again. Something was rebuilt or fixed (if PARAGON NTFS or OSX itself did the trick - I'm not sure, as I did not try this move before I installed PARAGON) 3) Windows 7 started perfectly again. I did not repair windows or use diskpart.
I use Windows Ultimate SP1 on a macbook pro with daz loader. Never had problems, loader install's just fine and windows is genuine.