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Fix Command Prompt SSL Certificate Error: Not Trusted - Fix Windows Update 502 Bad Gateway in Windows 10-Resolve Defender Update Connection Timeout

2026-06-13 19:49:31developer-tools
Fix Command Prompt SSL Certificate Error: Not Trusted - Fix Windows Update 502 Bad Gateway in Windows 10-Resolve Defender Update Connection Timeout

Final checklist

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