We have a Server 2012 as Hyper-V host with several virtual machines. In one of these, a Windows 7 guest system crashed into a DRIVER_POWER_STATE_FAILURE
bluescreen saying "Collecting error information" but staying at 0% for hours with maximum CPU load.
The "Power off virtual machine" menu item in the VM doesn't work, the status bar says "Shutting down..." but there is no progress. How can I reboot this VM?