Saturday, 9 September 2017

Windows 10: no UAC prompt in explorer

When I'm trying to copy or move files to a system directory (like C:\Program Files or C:\ProgramData\Microsoft\Windows\Start Menu) nothing happens instead of being prompted for access rights with the usual UAC dialog. The files are not copied/moved and there is no error message.


Here's the story behind it:
I got a new PC with Windows 10 installed. There was already a user account "user" created, but I wanted my own account "Florian" with my own name. So I created my account in Administrative Tools and added it to the Administrators group. I switched to my new account and deleted the old "user" account.


User accounts


Since then I started to setup my PC and install my programs. I tried to copy some portable programs to C:\Program Files when I noticed that I could not simply copy a directory into C:\Program Files. I expected a UAC prompt, but I only got the wait cursor for the fraction of a second and nothing happened. I cannot even delete directories from installed programs.


My user account has no permissions except "special permissions" for C:\Program Files, but as I am in the Administrators group I should be able to modify files there. I checked this with another Windows 10 installation and the permissions are the same.


Directory permissions


I get the regular UAC prompt when modifying system settings running programs "as Administrator".


Any ideas why I am not prompted for permission when copying to system folders?

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