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Fix OneDrive Sync Port Already Allocated Setup Error - Fix Windows Defender Error 0x800106ba: Failed to Start-How to Resolve Teams Authentication Token Expiry

Updated 2026-06-14 03:21:15windows-fixes
Fix OneDrive Sync Port Already Allocated Setup Error - Fix Windows Defender Error 0x800106ba: Failed to Start-How to Resolve Teams Authentication Token Expiry
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.