This article is to reinstall the Teams Add-in for Outlook that may have been disabled accidentally or by the current Microsoft system that manages COM Add-ins that may slow down or affect Outlook.
To check if the Teams add-in has been disabled due to slow Outlook experience:
- In Outlook select File
- Under Account Information select Manage COM Add-ins (it will be next to "Slow and Disabled COM Add-ins")
- For the monitoring options of the add-in select "Do not monitor this add-in for the next day 30 days"
- Apply changes
To check all Add-ins that can be enabled or disabled in Outlook:
- Select File
- Click Options
- Under Outlook Options select Add-ins
- Under Manage dropdown select COM Add-ins or Disabled Items and click Go to check the location of the inactive add-in
- If under Disabled Items, select Teams add-in and then select Enable
- If under COM add-ins, select Teams add-in and check the box then click Ok
- Restart Outlook to save changes and check that the add-in is working