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Fixing 'docker daemon not running' Error: Connection Refused - Windows Defender Update Error Permission Denied Troubleshooting-How to Fix Windows Defender Invalid Configuration Permission Denied

Updated 2026-06-13 12:49:34office-tools
Fixing 'docker daemon not running' Error: Connection Refused - Windows Defender Update Error Permission Denied Troubleshooting-How to Fix Windows Defender Invalid Configuration 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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