The BSOD error is caused by the Update from Microsoft named
Nforce4 PCI-Express Root Port (also included in Nvidia drivers).
This is a guide to solve the problem:
1. If you got the BSOD, find a way (safemode or dualboot)
to rename the file in \windows\system32\drivers\royal.sys to royal2.sys
2. Your should not get the BSOD the next time you restart.
Go to Control panel -> Device Manager.
3. Under System Devices you should see the Nforce4 PCI-Express Root Port.
4. Right-click and choose Properties.
5. Under the Driver tab choose Roll Back Driver.
6. BEFORE you restart rename \windows\system32\drivers\royal2.sys back to royal.sys
7. Restart now and it should be activated!