Just sharing this application I created, that allows your to power off your Xbox controller by holding down the guide button. The same button you would use to power on.
Why: Every method involved running a script or an executable when you wanted to power off the controller. I just wanted it to be simple, turn on, and off the controller from the same button.
GitHub: https://github.com/Programming4life/xOff
If this is in the wrong category please let me know. Also commits, and issues are welcomed.