Weird Issue. Black Screen when Windows Popup in Windows

[Recycleb1n]

Wow

Thanks for all the informative replies.

The main issue that really annoyed me was that I simply couldn't kill the process or even alt+f4 the window. I will try the suggestions mentioned here next time because I was being forced to restart my Windows OS whenever this issue happened (because I couldn't kill the process)

Ill try the Show All Users/Processes suggestion next time.