If you’re like most people, you probably have a Playstation 4 controller plugged into your computer. But if you want to turn it off, there are a few steps you can take. First, open the PlayStation 4’s system software and click on the “Settings” button. Then select “PlayStation 4” from the list of devices and click on the “Turn off controller” button. Now that you’ve turned off your Playstation 4 controller, be sure to unplug it from your computer.