Applies To
Outlook for Microsoft 365 Outlook on the web New Outlook for Windows

Safe mode disables add-ins, allowing you to open classic Outlook and use email even when Outlook isn't working correctly. 

To turn off safe mode:

  1. Select File > Exit to close Outlook.

  2. Restart Outlook.

Classic Outlook will start in normal mode unless there's still a problem opening the application. If there's still a problem, you can try to repair Microsoft 365. For instructions, see Repair an Office application.

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