I tried moving the folder from my Temp to my desktop (hoping that might give me more control over it), but it said it was in use. So I rebooted in Safe Mode and it let me move it. I still couldn't delete it, but I was able to delete most of the subfolders. Only the Windows subfolder survived. After rebooting, nothing seems to have changed except that it freed up about half a gig of disk space.
I'm begining to get the feeling I might need to just let it be. It's not hurting anything, other than my state of mind, and I can't seem to do anything with it. When I get back to uni I may check with some peeps who are a few years ahead of me as comp sci majors and see what they think.