If system repair fails, the next step is a refresh, reset or clean install. If the clean install fails on hardware that used to run Windows without issues, it's a hardware issue.
I am running an asus z170m-e d3, intel i5-6600k, evga gtx 970.
while running CSGO my screen froze, the screen went black and a message saying overclock failure appeared. From that time on I have been unable to boot into windows but have been able to load the bios. After reading some forums it seemed likely that the cpu was at fault. I purchased a factory new intel i5-7500 to replace the chip with and after updating the bios I was able to boot back into the bios. unfortunately I came to the same problem where it will not boot windows, attempts to run system repair but eventually says unknown error. What could be at fault? Have I ruled out the cpu as the issue?