I have a host server running windows 2008 r2 enterprise edition and a hyperV guest on the same OS. When I tried to install service pack 1, after restarting, it hangs for a long time at "Stage 2 of 3 Preparing to configure windows. Do not turn off your computer."
After almost 2 hours, it managed to complete but when I tried to login, it hanged again at "Applying User Settings"
I turned off the VM and restarted it. It went back to "Stage 2 of 3..." and is still running.
What could be the problem?