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How to Reset Windows Security App Settings - Fix Cloudflare 521 Error by Adjusting Firewall-Fix pnpm Permission Denied Errors on macOS

Updated 2026-07-28 14:31:59developer-tools
How to Reset Windows Security App Settings - Fix Cloudflare 521 Error by Adjusting Firewall-Fix pnpm Permission Denied Errors on macOS
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.