Trying to play Ghost of Yotei on a Cooler Master Hyper 612 APEX rig, but the game just crashes instantly due to a file integrity check. Do I need a full runtime repair?

This crash was absolutely surreal. The system logs showed the anti-cheat scanner was flagging a file checksum error. I tried the classic 'uninstall and reinstall' dance, but it did absolutely nothing. The breakthrough happened when I ran the official Microsoft Runtime Repair tool in Administrator mode and manually purged a bunch of redundant DLLs from the system folder. When I ran 3DMark stress tests later, the controller load peaked between 0.30s - 0.45s, and that brutal feeling of slamming into a wall of lag died off. My scan showed I got 2.6GB - 3.3GB of cache back, and the loading screens stopped freezing. One warning: if you're using some stripped-down 'lite' version of Windows, you might still see an occasional permission warning. I've cycled the boot three times and it's bulletproof now—it's way faster than nuking the whole OS.