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How to Fix Cloudflare Error 521: Web Server Down - How to Fix Windows Terminal Stuck on Initializing-Windows Defender Service Not Starting? Try These Fixes

2026-06-13 17:05:06developer-tools
How to Fix Cloudflare Error 521: Web Server Down - How to Fix Windows Terminal Stuck on Initializing-Windows Defender Service Not Starting? Try These Fixes

Final checklist

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

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