I have a PC which was upgraded from Windows 8.1 (no, clean install is not an option on this machine)

So the problem is that any changes I make in the Advanced Sharing Settings in Network and Sharing Centre are getting changed but their effects are not taking place.

For example I disabled sharing of the "Users" folder, that didn't work, it still shows up.
I disabled Password Protected Sharing, that didn't work, I need to put a password each time.

Please help.