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Fix Windows Search Network Error on Windows 10 - Resolve Windows Defender Not Opening (Error 404)-How to Fix Chrome Profile Network Error 'Permission Denied'

Updated 2026-06-14 04:53:29security-tools
Fix Windows Search Network Error on Windows 10 - Resolve Windows Defender Not Opening (Error 404)-How to Fix Chrome Profile Network Error 'Permission Denied'
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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