I purchased a new MSI Radeon RX570 card with 8gb of memory and installed it into my PCI-E 16 slot on my MSI motherboard with an AMD A3 CPU. I have installed graphic cards on this motherboard without any problems in the past. This time the pc would not boot and showed an error code in MBR file that a file was missing or corrupt. I tried to replace the file from my Windows 10 pro disk without luck. I then tried putting my old graphic card back in which is a AMD GeForce 470 card and I got the same result. I have spent a couple of days trying to fix this error without luck. I have even gone so far as buying a new SSD hard drive and starting a fresh install but the computer will not make it through an install without rebooting and I have to start all over. Frustrating as all hell. Please Help!