2.2.1.8 Policy Version
Key: Software\Policies\Microsoft\WindowsFirewall\
Value: "PolicyVersion"
Type: REG_DWORD.
Size: Equal to size of the Data field.
Data: This field is a 32-bit value.
This value represents the contents assigned to the configuration option represented by the FW_GLOBAL_CONFIG_POLICY_VERSION enumeration value as defined in [MS-FASP] section 2.2.42.