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Fix Windows Defender Port Already Allocated Error - How to Fix OneDrive Error 0x8004de40 When Signing In-Troubleshoot Windows Defender Crash After Update 0x800704ec

2026-06-13 14:36:03cloud-software
Fix Windows Defender Port Already Allocated Error - How to Fix OneDrive Error 0x8004de40 When Signing In-Troubleshoot Windows Defender Crash After Update 0x800704ec

Final checklist

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