When you see a pop-up notification and want to view it, press and hold the Xbox button on your controller. Make sure you dont press and hold the Xbox button for more than a few seconds as holding it for five seconds turns off your controller and console.

If you bring up the notification center by selecting a notification, you see just the active or currently-incoming notifications and their available actions.

Say Xbox, show notifications. Or, go to the Home screen and choose the notifications tile. When you do this, you see your notification history.

Notifications remain in the notification center for a week, or until there are more than 50. Notifications keep the commands they have when they arrive, but those commands will not work if the action is no longer available. For example, a short time after a notification to join a game arrives, the join game command may not work if the game spot is no longer available

Go to Settings, select Preferences, then select the notifications you want to turn off. You can turn off individual notifications for Skype, messages, or party. Or, you can turn off all notifications