$instanceID = # The InstanceID is the ID of the System Defense policy you want to enable.
$systemDefensePolicyRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_SystemDefensePolicy WHERE InstanceID='" + $instanceID + "'")
$environmentDetectionSettingDataRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_EnvironmentDetectionSettingData WHERE InstanceID='Intel(r) AMT Environment Detection Settings'")
$inputObject = $environmentDetectionSettingDataRef.CreateMethodInput("SetSystemDefensePolicy")
$inputObject.SetProperty("Policy", $systemDefensePolicyRef)
$outputObject = $environmentDetectionSettingDataRef.InvokeMethod($inputObject)
$returnValue = $outputObject.GetProperty("ReturnValue")