Outlook not responding stuck at "Processing," stopped working, freezes, or hangs


Outlook stops responding


Windows 10, Outlook


If the process is only frozen, ending the task and restarting the application will resolve the issue:

  1. Open Task Manager
    • Press Ctrl + Alt + Delete
    • Choose Task Manager
  2. On the Processes tab, choose Outlook
  3. Click the End Task button
  4. Try re-opening Outlook


If the problem is a recurring issue, here are some other suggestions:

  1. Enable Cached Exchange Mode.
    1. With Outlook open, choose the File tab and select Account Settings > Account Settings
    2. Choose your email account
    3. Click the Change button
    4. Check the checkbox to "Use Cached Exchange Mode to download email to an Outlook data file"
    5. Click Next, then Done, and close the Account Settings window.
  2. The problem could be with an unstable add-in. To find out, first start Outlook in Safe Mode. If this resolves the problem of Outlook not responding, disabling the add-in that is causing the issue will resolve the problem.
    1. To Start Outlook in safe mode:
      1. Close Outlook
      2. Using Windows 10 choose Start
      3. press enter
      4. type Outlook.exe /safe
      5. Close Outlook and open it normally
    2. To Disable Add-ins:
      1. With Outlook open, go to the File tab and choose Options
      2. Click Add-ins on the left pane
      3. On the right, next to Manage, with "COM Add-ins" selected, click the "Go..." button
      4. In the COM Add-ins window, uncheck all available Add-ins
      5. Click OK to save changes
      6. This will disable all of your installed Add-ins for Outlook. You can re-enable apps again individually if you need them again in the future.

If Outlook goes into "Not responding" and freezes immediately on startup, you may attempt creating a new Outlook profile:

  1. Close Outlook.
  2. In Windows 10, choose Start. Type Control Panel and press Enter. Choose User Accounts > Mail > Show Profiles.
  3. Choose Add, and in the Profile Name box, type a profile name, and then choose OK.
  4. Enter an email address and a password for the primary email account you use in Outlook and then walk through the steps to create the profile.
  5. Once the profile is created, on the Show Profiles dialog, choose Prompt for a profile to be used.
  6. Start Outlook and choose your new profile. Once you have confirmed this works, you can choose Always use this profile and set it to the new profile.

Do you still need help?  Create a support ticket and someone will contact you.  IT General Ticket


Article ID: 25336
Tue 2/21/17 3:50 PM
Thu 10/27/22 10:47 AM

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