I recently finished building my first PC, and on boot the screen showing up was a very glitchy screen as image shows
. I was able to install Windows through bootable media, and everything but BIOS seems to work fine. I do need to update the bios of my Gigabyte B450M Gaming with the Athlon 200GE I got in order to use my Ryzen 5 3600. The current version per dxdiag is F1. But my sistem does not have a CD/DVD boot and I can't access my current bios, since on restart the screen is glitchy as in image or some variations until it gets to windows.