Windows 11 Windows Defender Firewall blocking Windows Defender Antivirus antivirus updates

  • Thread starter Thread starter j w4g
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J

j w4g

I want to use Windows Defender Firewall to block outbound connections. I've configured it to block outbound connections and added a rule to allow the browser. However Windows Defender Antivirus then cannot download antivirus updates. I've tried adding a rule to allow MpCmdRun.exe, but this does not fix the problem. What rule(s) do I need to add to allow antivirus updates ?

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