Since Thursday my computer has been blue screening on startup displaying a Atikmdag.sys error which I assumed was to do with my graphics card or card driver's. I took it into a computer shop and they confirmed that my RX 570 armor OC was faulty. Today I brought my pc home and swapped in my GTX 950 and low and behold Atikmdag.sys on startup. Since the guys at the shop did a windows reinstall and a HDD wipe. I'm kind of lost at what to do next.