$auditLogRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_AuditLog WHERE Name='Intel(r) AMT:Audit Log'")
$auditLogInstance = $auditLogRef.Get()
$auditLogInstance.SetProperty("StoragePolicyProperty","2") 
$auditLogInstance.SetProperty("MinDaysToKeep","3")
$auditLogRef.Put($auditLogInstance)