When I try to install url/useragent in Novetus, I get the error "Failed to register error: did not run as administrator." I tried running the program as administrator, but that didn't help. Then I booted into safe mode to run it as administrator, but that didn't help either. I even went further and set a password for the administrator user, then logged in as the administrator user through the classic user menu, but that also didn't help. I get the same error. How can I fix this?