Alright. I found a solution to the problem i had. I had atmos going for month. Then suddently, i couldn't swap to atmos anymore in the sound settings. I just got the message "Something went wrong when trying to turn on spatial sound". What i did was, that i troubleshot the audio. So i right clicked on the sound icon, and did "trouble shooting sound", and then i selected my soundbar, and the trouble shooting said it fixed something, then i restarted the pc, and i was able to select atmos once again, without no error message. Hope this helps somebody.
Did not help, he suggested reinstalling audio drivers, but this I tried anyway. Didn't work here either. Only solution right now is to reinstall Windows again and again for me. And this obviously sucks.