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Fix High Memory Usage After Windows Update - How to Resolve 'upstream host not found' in Nginx-Windows Activation Error 0xc004f074 Troubleshooting

Updated 2026-06-13 20:23:38office-tools
Fix High Memory Usage After Windows Update - How to Resolve 'upstream host not found' in Nginx-Windows Activation Error 0xc004f074 Troubleshooting
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.