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Fix Windows Update Stuck at 0 Percent Loading - Resolve 'javac' Not Recognized After JDK Update-Troubleshooting PostgreSQL Connection Refused (port 5432)

Updated 2026-06-13 13:07:15
Fix Windows Update Stuck at 0 Percent Loading - Resolve 'javac' Not Recognized After JDK Update-Troubleshooting PostgreSQL Connection Refused (port 5432)
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.