The next time you’re confronted with a frozen PC running either Windows 8.1 or Windows 10, give the Emergency Restart procedure a try. Here’s how:
1 – Press the Ctrl+Alt+Delete key combination to launch the “Security Options” screen.
2 – Press and hold the Ctrl key, then click the Power icon located in the lower right-hand corner of the screen. Windows will now warn you that you’ll lose any unsaved data if you proceed with the Emergency Restart.
3 – Click the OK button to force the PC to immediately shut down and then boot back up into Windows.