Windows key doesn´t let me tab out of game anymore

Hey guys,

since two weeks I can not tab out of the game by just pressing windoes key. The game is in windowed fullscreen as for the last years.

Alt + Tab does work but it´s just so pain to do that.

Is there any help or known thread I can refer to??

In other games if I put them into windowed it just works fine. I already updated all drivers and tried to reinstall the game and repair.

Pls help me :)