I was playing my game until my entire PC crashes. I boot it up again and I realize the monitor which is connected to the HDMI port isnt working. I launch a game and wonder why its running so slowly. Turns out that the Graphics Card being used was not the Radeon RX 580 but the one which originally comes with windows. I tried installing the AMD Software but halfway through the download it says it hasnt got any free space even though i have 400GB free space. The software recognized the Radeon 580 but the PC doesnt. I'm not quite sure what to do now so any suggestions will help.