Screen remains frozen after unplugging

Hold the power button to force shut down. if still frozen after shutting down, shut it down again. Hold the power button until you see Continue holding for startup options. When it shows loading startup options, release the button, select options, type ur password, Choose INstall MacOS or Disk Utility. on disk util, select first aid on "Macintosh HD", and give a shot again after

You can force a shutdown by pressing and holding the power button until your Mac shuts down. You may lose unsaved changes in open documents.

More Info Plz?

Exactly