Hi Pr2459.
I'm sorry to hear about the issues you're experiencing.
What I would like you to try is what we call a 2-button shutdown, instructions below.
Step 1: As your Surface is powered on, press and hold the Power-button for 30 seconds.
Step 2: Press and hold the volume up-button and the power-button at the same time for atleast 15 seconds, then release both.
The Surface logotype might flash on the screen while performing this step, but just keep both buttons pressed for the 15 seconds.
Step 3: Wait for about 10 seconds after you released the buttons.
Step 4: Start your Surface again by pressing and releasing the Power-button.
Let me know if this solves your issue.