Policy
Windows Defender Firewall: Allow local port exceptions
Allows administrators to use the Windows Defender Firewall component in Control Panel to define a local port exceptions list. Windows Defender Firewall uses two port exceptions lists; the other is defined by the "Windows Defender Firewall: Define inbound port exceptions" policy setting. If you enable this policy setting, the Windows Defender Firewall component in Control Panel allows administrators to define a local port exceptions list. If you disable this policy setting, the Windows Defender Firewall component in Control Panel does not allow administrators to define a local port exceptions list. However, local administrators will still be allowed to create firewall rules in the Windows Defender Firewall with Advanced Security snap-in. If you wish to prevent all locally created rules from applying, use the Group Policy Object Editor snap-in and configure Computer Configuration\Windows Settings\Security Settings\Windows Defender Firewall with Advanced Security to specify that local firewall rules should not apply.
45130bf9199a WF_OpenPortsLocal_Name_2 Registry
Copy registry mappings
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile\GloballyOpenPorts\AllowUserPrefMerge (enabled) = 1
HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile\GloballyOpenPorts\AllowUserPrefMerge (disabled) = 0Policy notes
Allows administrators to use the Windows Defender Firewall component in Control Panel to define a local port exceptions list. Windows Defender Firewall uses two port exceptions lists; the other is defined by the "Windows Defender Firewall: Define inbound port exceptions" policy setting. If you enable this policy setting, the Windows Defender Firewall component in Control Panel allows administrators to define a local port exceptions list. If you disable this policy setting, the Windows Defender Firewall component in Control Panel does not allow administrators to define a local port exceptions list. However, local administrators will still be allowed to create firewall rules in the Windows Defender Firewall with Advanced Security snap-in. If you wish to prevent all locally created rules from applying, use the Group Policy Object Editor snap-in and configure Computer Configuration\Windows Settings\Security Settings\Windows Defender Firewall with Advanced Security to specify that local firewall rules should not apply.