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Fix GitHub Actions Cache Action Permission Denied Error - Troubleshoot Windows Defender Real-Time Protection Authentication Error-Restore Windows Security Auto Start Registry Settings

2026-06-13 13:36:47macos-help
Fix GitHub Actions Cache Action Permission Denied Error - Troubleshoot Windows Defender Real-Time Protection Authentication Error-Restore Windows Security Auto Start Registry Settings

Final checklist

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