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Fix Missing Taskbar Icons After Uninstalling a Program - Troubleshoot Nginx Permission Denied-How to Resolve Cloudflare 521 on Reboot

Updated 2026-07-28 17:08:12developer-tools
Fix Missing Taskbar Icons After Uninstalling a Program - Troubleshoot Nginx Permission Denied-How to Resolve Cloudflare 521 on Reboot
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.