Outlook Doesn't Close Completely

It isn't very common that Outlook doesn't close on it's own. Practically always this is caused by an add-in or another program that integrates with Outlook. Once this add-in is disabled or updated or the program is closed the problem will be gone and Outlook will close normally again.


Solving shutdown issues caused by add-ins

You can disable add-ins in the following way;

• Outlook 2003 and previous
  Tools-> Options…-> tab Other-> button Advanced Options…-> button Add-In Manager… or button COM Add-ins…
• Outlook 2007
  Tools-> Trust Center…-> section Add-Ins-> select the type of add-in in Manage and press Go…
• Outlook 2010
  File-> Options-> section Add-Ins-> Go…

Then deselect the Outlook Change Notifier. It's working.