Enable System Notifications in Windows 10: Note: If you want to turn off or Disable the Gmail Desktop notification at any time, Just follow the same steps above and choose the Mail notifications off option and click on Save changes. But you need to enable the app notification in Windows 10 Settings. Now you can see the notification from your system.
This will Enable Gmail Desktop Notification in Windows 10. If you want to enable notification for all incoming mails then choose the first option “New mail notifications on”, and click on Save changes below.