Update. What worked was completely deleting the graphics driver, restarting, then going to the AMD site and letting them scan the system and reload. Seems like a not useful part of CCleaner if you have to go through this each time.
Original Post. Ran cleaner and, specifically, driver updater. Went to use a program I had used just an hour earlier, and got an error 126. Tried running the program as admin, and it was of no use. Figured out that it was related to the driver updates. Rolled all those back, but still got the error. Deleted my video driver and reinstalled it. Now I’m getting an error 87 with the same program. Tried to redownload the program, but it gives me the same error 87 when I try to do that, so I can’t even reinstall the program. Any help appreciated. Wish I had signed up for the trial period at this point and not paid for it.