I think it was the windows 10 creators update, thats knocked a fair few programs that previously worked without issue for a loop, in my case I had to reset a program I use when doing the internet radio dj thing, a few others I know, a british friend, ended up reinstalling starwars the old republic as a result of this update.
come to think of it..the windows 10 anniversary update did the exact same thing now that I think about it.
that said..the full scan has not run yet this week, that said, I'll consider it resolved by the repair, this time next week if it has not run again without being commanded/instructed to.