So Its really weird right now. I tried everything you told me here. Even tried like ten versions of nvidia drivers. The only working solution was clean install of windows. After I reinstalled the windows the card worked absolutely right. I tried few games and run benchmarks, used the official zotacs software to reset gpu settings to default and even ended playing PUBG for few hours with one restart I made during playing just to check if the GPU would still load. Then turned the PC off for a night and next day everything was back. Error 43 now mixed with error 1 after some restarts which ended in being error 43. Im not really familiar with doing a clean install each day. Do you have any other possible solution? Iam really thankful for any kind of response.