Recently I've noticed a strange behaviour when I tried to unhide protected operating system files.
I unticked the corresponding check box and I received the warning, but when I pressed the OK button,
nothing happened. When I opened the view settings again the check box was still ticked and when I repeated
the procedure, it worked. So I made a few tests with other settings and I always had the same results: I must
do the operation twice to take effect the settings that I change.
I would appreciate any help with this issue.

Windows 10 Home
version: 20H2
Build: 19042.685