1. Power off your Surface Pro
2. Press and hold the Volume Up and Power button for 15 seconds then release both buttons. The screen may flash the Surface Logo, but continue to hold the buttons for the full 15 seconds.
3. Wait 10 seconds after the buttons have been released
4. Press the Power button to turn your Surface back on
Once your Surface Pro is powered on again, please go to Control Panel, then to Windows Update and check for updates and install any remaining updates.