In order to use your external hard on the Xbox One it must be USB 3.0 and 256GB or bigger. Here Im going to show you how to format your external hard drive for games and app on the Xbox One. If your Xbox One doesn’t recognize your hard drive you can try plugging in your hard drive to another usb port, restarting your console by pressing and holding the power button for 10 seconds.
Step 1: Click Settings
Step 2: Go to System then Click Storage
Step 3: Click on the external hard drive you which you want to format and click “Format for games and apps”