You can configure your Xbox One console to use either instant-on power mode or energy-saving power mode, depending on your preference.
Note You’ll be prompted to select a power mode during console setup, and you can also change it in console settings.
In instant-on power mode, your Xbox One console is up to date and ready to use. In this mode:
Your console automatically downloads updates.
Your console starts up in two seconds.
You can wake the console using a voice command (where available).
To update your console automatically, you must select the setting to keep your console, games, and apps up to date.
Also, to take updates, your console needs to be turned off. You can set your console to turn off automatically after 1 or 6 hours of inactivity, or simply turn it off when you're not using it.
To change these settings:
Double-tap the Xbox button to open the guide.
Select Settings > All settings.
Select Power mode & startup. Make sure Power mode is set to Instant-on, and:
For automatic updates, select Keep my console, games & apps up to date.
To turn off your console when idle, select an option under Turn off after.
Your console might sound like it's on when downloading and installing updates.
On the original Xbox One console, in instant-on power mode, the console power supply unit (PSU) remains on and the light on the PSU is white. You may also hear the fan in the PSU. (The Xbox One S does not have an external power supply.)
The console uses 15 watts of power while turned off in instant-on mode.
In energy-saving power mode, your console is shut down to save energy. In this mode:
Updates are not downloaded and installed until your console is turned on.
Your console takes 45 seconds to start up.
You must press the Xbox button to start the console.
On the original Xbox One console, in energy-saving mode, the PSU is in off/standby mode and the light on the PSU is orange. (The Xbox One S does not have an external power supply.)
The console uses 0.5 watts of power while turned off in energy-saving mode.