A Hyper-V user with BitLocker enabled may encounter a restart failure if the Device Guard or Credential Guard feature has not been disabled or has not been uninstalled cleanly. Specifically, upon restart, you receive following error message on a blue screen:
Your PC/Device needs to be repaired.
A required file couldn’t be accessed because your BitLocker key wasn’t loaded correctly.
Error code: 0xc0210000
You’ll need to use recovery tools. If you don’t have any installation media (like a disc or USB device), contact your PC administrator or PC/Device manufacturer.
Press Enter to try again
Press F8 for Startup Settings