@kellanist, does that script only work if you right-click and run it as administrator? If so, you could try running the TRIGGERcmd agent as administrator.
By default, the TRIGGERcmd agent will not run your commands as admin, but if you run the agent as admin, then the commands it runs would run with the elevated tokens too.
You could also turn off UAC, but of course that has security implications.