How to turn off a Wireless Xbox One controller on Windows 10

No, you cannot do this

It must be a WIRED controller, like the one shown here

The cable on the xbox 360 wireless controllers is merely for charging, it doesn't pass input from the controller.

If you're playing a 'Games for Windows Live' enabled game, you should be able to shut it off through the fancy Windows Live menu that appears get when you press and hold the Guide button (the big green X in the center).

If you're not playing a Windows Live, enabled game, it looks like you're out of luck; the only way to shut off your controller short of popping the batteries out is to leave it inactive for a period of time (reports online vary; anywhere from 10 to 20 minutes seems to cover the range).

However, you're not the only one who has been annoyed by this, it seems. I found a free utility for Windows that appears to give you some extra functionality when you press and hold the Guide button, and it allows you to shut off your controller through a brand new dialog box.

Check it out: Xbox 360 Controller Manager

Note: The english description is below the Hungarian one on the linked website.