Try running Outlook in Safe Mode to see if the error is occurring due to one of the add-ins. Resetting Outlook's navigation ...

We’ll break this solution into three phases: Right-click on the Start menu button and select Run from the context menu. Type Outlook/safe into the Run dialog box and click on the OK button.

You can do plenty of things on Outlook, including some you probably didn’t even know about. But every user will encounter the ...