If Outlook is stuck processing and will not open, try the steps outlined below.
- Click the Windows button (start button) in the lower left of your desktop screen.
- In the search box, type Run.
- Press enter or click the Run program.
- In the Run window type, Outlook.exe /safe
This will start Outlook in safe mode. After Outlooks opens, you can close out of Outlook and restart it normally. Running Outlook in safe mode will clear up most issues caused by an improper closing of the desktop application or any issues caused by add ins.