The UAC will come always, try to run this in admin, right click run as admin or change the app executable or the apps entire folder and give it all elevated administrator permissions. Then UAC prompt will be skipped, or if you as I can see are already using Auto Hotkey, there are many scripts available for this, where it automatically clicks Yes (Button 1) when it detected the UAC admin prompt, you can activate it keeps running on loop and that's good for you, or if you can, disable UAC, [DON'T, this is last resort.]