Usually, such unwanted situation arises due to reasons like hardware issue, corrupted Outlook installation files or even damaged Outlook data files. In addition, such situation also arises due to a conflict between Outlook and a 3rd party Outlook add-in. Just in case you are working on MS Outlook 2013 or even its previous versions, the here are few suggestions that can be taken care of in order to overcome from such circumstances:
Apart from these, you may also disable the faulty add-in. To disable a faulty add-in in Outlook 2010 and 2013, follow File tab > Options > Add-ins > Go. Simply uncheck the add-in you want to disable, and exit the dialog box.
If your Outlook application has stopped responding and “Processing”, you can close Outlook, the message appears on the screen too frequently, follow the below-mentioned steps:
If the issue still persists, makes sure:
If installing updates don’t work, you can proceed with the repair of Office programs, and then Outlook data files. Lastly, you can create a completely new user profile. If the new profile works smoothly, delete the old profile to avoid conflicts.