To turn off all notifications from apps, move the Get notifications from apps and other senders slider to the Off position.Take control by opening the Settings app and going to the Notifications & Actions section: The more apps you use, the more chaotic those notifications can get.
One of the signature features of Windows 10 is the way it handles systemwide notifications, allowing any app (including desktop programs like Outlook 2016 and Adobe's Creative Cloud) to display messages.
