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Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - How to Resolve Windows Security 404 at Startup-Resolve OneDrive SSL Certificate Error After Update

2026-06-13 21:13:29windows-fixes
Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - How to Resolve Windows Security 404 at Startup-Resolve OneDrive SSL Certificate Error After Update

Final checklist

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