The publisher could not be verified

Everytime I open the Wow.exe it says 'The publisher could not be verified'. The game starts when I press ''run'' so I am able to play but the real problem is that everytime I restart the game all my System settings are reset to deafault such as sound volume and UI resolution. Before I had to go through the Terms of Use everytime but this one got fixed by itself so it's no longer a problem. The interface settings such as unit frame placment or addon stuff works fine (only the 'Load out of date addons' feature resets). I have played like that for a few months but the real hell started when the game didn't want to save my macros anymore. That wasn't a problem before but now everytime when i create/edit a macro it resets when I close the game. I always run the game as an administrator.