Plex Media Player gets stuck in full screen

No matter what you do, the double arrows won't allow you to exit full screen.  You can't move monitors even with windows+arrow.

Uninstall didn't fix it either.  The only solution I have found that works is the following:

Navigate to:

C:\Users\<user>\AppData\Local\PlexMediaPlayer

Make sure Plex media player is closed and then delete the file called plexmediaplayer.conf.

Reopen PMP and it should be unlocked.