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Fix 'Command Prompt Returns 404 for Localhost' - Fix Windows Defender Service Not Starting Error-Troubleshoot Windows Update Memory Leak

Updated 2026-06-14 09:55:49developer-tools
Fix 'Command Prompt Returns 404 for Localhost' - Fix Windows Defender Service Not Starting Error-Troubleshoot Windows Update Memory Leak
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.