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Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - Fix Windows Store Error 0x80073cf9 Permission Denied-How to Resolve Windows Security Error 0x80073b01

2026-06-14 16:52:20cloud-software
Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - Fix Windows Store Error 0x80073cf9 Permission Denied-How to Resolve Windows Security Error 0x80073b01

Final checklist

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