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Home / macos-help / How to Fix Windows Update Connection Refused by Antivirus - Fix Chrome 'Connection Refused' Error from Firewall Block-How to Resolve Windows Store Error 0x80073cf9

How to Fix Windows Update Connection Refused by Antivirus - Fix Chrome 'Connection Refused' Error from Firewall Block-How to Resolve Windows Store Error 0x80073cf9

Updated 2026-06-14 13:43:52macos-help
How to Fix Windows Update Connection Refused by Antivirus - Fix Chrome 'Connection Refused' Error from Firewall Block-How to Resolve Windows Store Error 0x80073cf9
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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