This article describes how to disable Windows 10 notifications from your desktop that may come from downloaded apps or web browsers. You can choose to disable notifications completely or only from specific apps.
How to Turn Off All Notifications in Windows 10 Tutorial
If you want to turn off all notifications, regardless of where they come from, you can do so in just a few clicks through the Settings app.
Select Start in the lower-left corner of your desktop.
Select Settings (looks like a gear).