Sometimes Outlook add-ins have issues and may need to be re-enabled or re-installed. The following steps will guide you through doing so.
Step 1: Check Disabled Add-ins
Open Outlook.
Navigate to File > Options > Add-ins.
In the Manage drop-down menu at the bottom, select Disabled Items and click Go.
Review the list of disabled add-ins.
If the desired add-in is listed, select it and click Enable.
Restart Outlook to apply the changes.
Step 2: Verify the Add-in’s Status
Return to File > Options > Add-ins.
In the Manage drop-down menu, select COM Add-ins and click Go.
Ensure the add-in is checked in the list.
Click OK and restart Outlook if necessary.
Step 3: Reinstall the Add-in (If Necessary)
If re-enabling the add-in doesn’t resolve the issue or the add-in is missing, you may need to reinstall it:
Uninstall the Add-in (if it’s partially installed):
Go to File > Options > Add-ins.
In the Manage drop-down menu, select COM Add-ins and click Go.
Uncheck the add-in and click Remove.
Reinstall the Add-in:
Obtain the installation file or link from the add-in provider.
Follow the provider’s instructions to install the add-in.
Restart Outlook to complete the installation.
Step 4: Adjust Trust Center Settings
Some add-ins may fail to load due to security or trust settings. To ensure the add-in can run:
Go to File > Options > Trust Center > Trust Center Settings.
Navigate to Add-ins.
Review the settings for add-in types and ensure they’re not being blocked.
Click OK to save changes.