But CCleaner didn't change permissions; it simply deleted certain items. Oh, I get it--CCleaner should not have been able to delete that stuff and ruin the shell and modern apps... Totally agreed. Very annoying issue. Probably going to have to restore an old Win8 image and re-upgrade... I mean re-update.
- This is not the first time a Win 10 user had these kind of problems.
- But the most recent version of Tweaking's Windows Repair (v3.50) is able to fix those problems. Run it before you re-install or re-upgrade Win 8 or Win 10. The latest version was just released earlier this week.