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Fix Windows Update 502 Bad Gateway After Update - Windows Defender Black Screen Loading Fix-Microsoft Store Connection Refused Troubleshooting Checklist

Updated 2026-06-13 14:34:27macos-help
Fix Windows Update 502 Bad Gateway After Update - Windows Defender Black Screen Loading Fix-Microsoft Store Connection Refused Troubleshooting Checklist
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.