Hi,
I've two bugs to report:
1.) For some reason, CCleaner deletes/removes settings in Compatibility Tab for every application (it removes "Disable display scaling on high DPI settings", in picture it's how it's supposed to be):
2.) Up to this date, CCleaner can still erase used File Associations. I know that I can deselect in Registry -> Unused File Association, but that makes this option pointless, and I can't clean up unused associations ever. Most of the times, it works perfectly, but once it simply chooses to delete used associations for no reason (this is how it should be, but it removes defaults and you can see them missing in this window):