On the Tools menu, click Trust Center, and then click Add-ins. In the Add-ins box, identify the add-in that you want to enable or disable and note the Add-in type located in the Type column. Select the Add-in type in the Manage box and then click Go. Sele

The steps to handle disabled or inactive add-ins are different. A. Re-enable a "Disabled" Add-Ins in 2013. Go to File >Info; Select Manage COM Add-ins; In the windows, select Enable EasiShare Outlook Add-in, click on Always enable this add-in

Enable Inactive Add-in. If the add-in is listed under Inactive, make sure "COM Add-ins" is selected in the "Manage" drop-down and click "Go...". Check the checkbox next to the Add-in and click "OK". Restart Outlook.