# The relevant value of the property that was used to discover the desired policy.
$policyName = "MyPolicy" 
$systemDefensePolicyRef = $wsmanConnectionObject.NewReference("AMT_SystemDefensePolicy")
foreach($systemDefensePolicyItem in $systemDefensePolicyRef.Enumerate())
{
	$systemDefensePolicyRef = $systemDefensePolicyItem.Object.ToReference("InstanceID")
	$systemDefensePolicyInstance = $systemDefensePolicyRef.Get()
	if($systemDefensePolicyInstance.GetProperty("PolicyName") -like $policyName)
	{
		$systemDefensePolicyRef.Delete()
	}
}