Ok, late reply, I had another intermittent, seemingly random, issue with my PS/2 devices not getting recognized at startup (Code 10 in device manager for one device, the other just simply didn't appear). Wasn't sure if it had anything to do with corrupted files, or not. Anyway, I troubleshooted that myself. It stopped happening after I disabled a memory heavy app at startup, along with some unused devices inside the BIOS, not sure which one exactly did it, but it seems fixed regardless. Maybe a Windows Update changed something, because I don't recall this happening previously?
TDLR: Had another issue, probably unrelated to corrupt files, fixed it.
Back on topic, SFC /scannow and CHKDSK both found issues and corrected them on their first run. However, on their second runs, no issues were found. So I think I'm good to go now.
I know I'm repeating myself, but Thank you so much, Maxstar, much appreciated! Elsewhere, everyone else said to just reinstall Windows, which for a few different reasons I really didn't want to do. So glad I found, this forum, I would have been truly screwed without you guys, lol. Keep up the good work!