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Fix Windows Defender Error 0x80070422: Cannot Connect - Cloudflare DNS Permission Denied Troubleshooting-How to Check and Install Pending Windows Updates

Updated 2026-06-13 15:25:03cloud-software
Fix Windows Defender Error 0x80070422: Cannot Connect - Cloudflare DNS Permission Denied Troubleshooting-How to Check and Install Pending Windows Updates
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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