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Fix Windows Defender Blocked by Third-Party Antivirus - Fix Windows 11 Installation Assistant Stuck at 99% Registry-Fix Cloudflare 522 Error by Disabling Proxy Temporarily

Updated 2026-07-28 12:37:04office-tools
Fix Windows Defender Blocked by Third-Party Antivirus - Fix Windows 11 Installation Assistant Stuck at 99% Registry-Fix Cloudflare 522 Error by Disabling Proxy Temporarily
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.