If your computer is running a 64-bit version of Windows and you’re using a 64-bit version of Outlook, the program will use a 64-bit version of Windows Notifications. This means that if your computer is running a 32-bit version of Windows and you’re using a 32-bit version of Outlook, Outlook will use a 32-bit version of Windows Notifications. Because the two versions are not compatible with each other, this can cause problems when trying to send or receive email messages.
If you want to use the same version as the rest of your programs on your computer, follow these steps:
In the Notification area (right side), click Turn off all notifications. You may need to scroll down in the Notification area until you see this option.
You’ll see a message telling you that all notification icons have been turned off.
Last modified: August 14, 2022