I have a Server2008R2 box that is rebooting at "Applying Registry Settings" whenever an active-directory user logs in. If I remote in as myself it crashes, if I log in from the console as myself it crashes, but I can log in remotely and locally as the local admin account.
The stop error is:
The computer has rebooted from a bugcheck. The bugcheck was: 0x000000d1 (0x0000000000000000, 0x0000000000000002, 0x0000000000000008, 0x0000000000000000).
A few seconds later in the logs show 27 different services failing to start on reboot.