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My Outlook add-in has been disabled and it is now impossible to reactivate it. What can I do?

Outlook 2013 and later versions provide add-in resiliency. This means that Outlook will disable an add-in if it performs slowly.

In most cases, when this happens, the procedure explained in this article is sufficient to re-enable the Outlook add-in.

Unfortunately, in rare cases, Outlook may permanently disable the add-in which will then cause this procedure to fail.

If this is the case for you, here is the solution to unlock the situation:

  1. Close Outlook
  2. Double-click on the .reg file corresponding to your version of Outlook
    • Click here to download .reg file for Outlook 2013
    • Click here to download .reg file for Outlook 2016
  3. If an alert message appears, please confirm
  4. Open Outlook
  5. Check that the Add-In is now enabled again

 

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