If the current user isn't an admin, they can't just click through UAC. If they are an admin, they could just do this manually. Either way, no privilege escala

If the current user isn't an admin, they can't just click through UAC. If they are an admin, they could just do this manually. Either way, no privilege escalation, which "rooting" typically implies. Sure, you could make a USB stick that automates any user input, but you could just make the same inputs yourself with the keyboard and mouse already at the machine. What kind of situation does this actually benefit you in?