In my ultimate noviceness, I didn't even think to try to run chkdsk in safe mode. Of course, as soon as I did, it ran flawlessly and cleaned up the drive just fine, no more wacky errors when defragging. Sorry for bugging you all, sometimes computers drive me nuts. At least I learned something new that may help me down the road.
Cheers 🙂
Cheers 🙂