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Fix Outlook Version Mismatch Error Code - Windows Defender Config Troubleshooting Checklist-Re-Enable Windows Defender After Uninstalling Third-Party AV

2026-06-14 09:44:00developer-tools
Fix Outlook Version Mismatch Error Code - Windows Defender Config Troubleshooting Checklist-Re-Enable Windows Defender After Uninstalling Third-Party AV

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.