Client opens but i cant see it.

Client launches but not appearing I open the client, i can clearly hear that its open and i hear the sound that makes when its patched and you can press ready to play and i can even "press" things on the client window BUT, the thing is that i cant see any client window. I tried minimizing maximizing, Alt+ - or Alt+ + to make it smaller bigger didnt work. I tried deleting the config folder didnt work. Tried re-installing it didnt work. I managed to run it on 640x480 and did the full troubleshot thingy but didnt fix it. Windows defender is not enabled, i dont have any anti-virus or something programs and everything was working yesterday with same Windows version and Nvidia GPU drivers. Its REAAAALLY frustrating that not even a clean re-install of the game fixes this. I even run the hextech tool and tried everything still this happens.