必应池
Home / browser-issues / How to Fix Windows Update Error 0x80070005 Permission Denied - Troubleshooting Explorer Crashes After New Program Installation-Troubleshooting Cloudflare 521 Connection Error

How to Fix Windows Update Error 0x80070005 Permission Denied - Troubleshooting Explorer Crashes After New Program Installation-Troubleshooting Cloudflare 521 Connection Error

Updated 2026-07-28 09:49:35browser-issues
How to Fix Windows Update Error 0x80070005 Permission Denied - Troubleshooting Explorer Crashes After New Program Installation-Troubleshooting Cloudflare 521 Connection Error
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.