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Fix 'Port Already Allocated' Error in Windows Defender on Windows 10 - Windows Search 502 Gateway Error Fix-How to Fix Windows Update Proxy Error with Group Policy

2026-06-13 19:00:18browser-issues
Fix 'Port Already Allocated' Error in Windows Defender on Windows 10 - Windows Search 502 Gateway Error Fix-How to Fix Windows Update Proxy Error with Group Policy

Final checklist

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