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Fix Outlook Port Already Allocated Error 0x800ccc0e - Outlook File Locked by Antivirus? Here's How to Fix It-Fix Outlook Crash After Windows or Office Update

Updated 2026-06-14 12:00:10browser-issues
Fix Outlook Port Already Allocated Error 0x800ccc0e - Outlook File Locked by Antivirus? Here's How to Fix It-Fix Outlook Crash After Windows or Office Update
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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