Alright. this is seriously wierd.
I tried removing the grafics card and use the onboard one. Now it doesnt go into blue screen when I attempt to start windows, instead it says that an unexpected restart has damaged the installation and that I need to restart it.
So far so good.
But when I try to start the windows installation that worked halfways before, it now acts very odly. When I boot from the disk it loads the files, then when it would normally start the instalation screen where I select luanguages and such, isntead it displays a screen that looks like someone kicked over 4 buckets of brightly coloured paint.
Then suddently it starts the real installation, having me choose luanguages and such, but still with the grafics all kinds of messed up..