spam alt f4 untill a menu comes up saying turn off computor or smth, just do shut off, and press enter

Press Win + R and write %appdata% in the Window and click ok.
Goto Geometry Dash and Delete this folder.
Finaly goto Steam and goto Libary and make a right click on the Game and click Propeties.
And click the Button: Verify Integrity of Game Files.

And Start the Game.


Sry for my English.
I'm from Germany and my English is very very very bad.

Just launch it, easy fix!