amd vga

I dont know what is this problem, someone help me! @@ View: https://imgur.com/a/yBPBexk

Hay guys im in a bit of a dilemma here I've recently ordered a rx 580 and found out that it AMD doesn't have drivers for win 8.1 (only for win 7 and 10 wdf ! ) i don't like to change my os to win 10 anytime soon any one here has tried using rx 580/570 on a win 8 machine (will the drivers...