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Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - Fix Windows Defender Real-Time Protection Crashing on Windows 11-How to Fix 'File Locked by System' in Windows Defender

Updated 2026-06-13 18:19:06developer-tools
Fix pgAdmin Cannot Connect to PostgreSQL on Localhost - Fix Windows Defender Real-Time Protection Crashing on Windows 11-How to Fix 'File Locked by System' in Windows Defender
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.