I'm running some games. But since today when i'm in 1 game (dont matter windowed/fullscreen etc) And click on other game at my taskbar it show up for second. And then it gone back to previous game. As if automatic minimize the game i click on. But when im in 1 game and click on icon of steam or internet explore etc. And then clicking on other game it work normally.

Same when im using alt+tab. When swapping games i get same problem but if i swap game to steam and then to other game. Then it work normally.
My drivers are updated same with steam. I did reinstall steam but that didn't work either.