When i press enter my Game switch between Fullsreenmode and windowmode is there a way to disable this?

first time encountering this :D Ill test later when ill have time

Might be a long shot, but did you check if your ALT button is okay? Usually, ALT + Enter changes a game from fullscreen to windowed mode. I honestly don't believe this is the solution, but might as well check

I disabled the alt button and it still switch between fullsreen/window mode :/

I switched to the english version. Now is it fixed ¯|(ツ)|¯

funny thing - switched to german and once i was able to quit to main screen with pressing 'enter' also tried to switch between full screen mode and yea only with 'alt' pressed with 'enter' mb german es bugged somehow? maybe other languages too ?!