Try to start Outlook without any add-ins running. Step 4 - Investigate possible add-in issuesĪlthough add-ins can enhance your user experience, they can occasionally interfere or conflict with Outlook.
Performance may be decreased if you use the Outlook AutoArchive feature or sync to Outlook with a mobile device. Step 2 - Make sure that Outlook is not in use by another process
For more information, see How to install the latest applicable updates for Microsoft Outlook (US English only).
Make sure that the latest updates for Outlook are installed.
The Office installation on your computer might not be up to date. These steps are provided in a specific order based on commonality and complexity.