When I try and update my AACS key, the update hangs and will never finish
WinDVD will hang during the update for the AACS key if you have Internet Explorer 8 and the UAC (User Account Control) turned on.
Please follow the steps below
1. Clear cookies and internet temporary files in Internet Explorer 8, Click Here for help clearing your Internet Explorer 8 cookies and Internet temporary files
2. Turn off UAC ("Control Panel -> User Accounts -> User Accounts -> Turn User Account Control on or off")
3. Reboot machine
4. Play BD again and then start the operations of updating AACS key.
5. Turn on UAC
6. Reboot Machine