Win 10 boot prompts automatic repair, but the repair fails, and the loop is infinite. Because the computer is a magical thing, the causes of frequent problems are not static. The experience I explained here is the cause of this problem that I experienced personally-Adsafe. Adsafe software will be installed every time the system is installed, because it is really easy to use. I have always had a stable version available, but I made a mistake when installing it on my newly bought notebook. I didn't think about it at first. After all, other computers are running well. After the author turned off automatic startup repair, another error occurred-I couldn't verify the digital signature of a file. Inquired about this file and learned that it was caused by adsafe. Everything was done overnight, and then the computer was reset without installing adsafe, and there was no boot repair.