I got this message on a system which has a Core i7-4510 CPU; this is not on the list of systems with "vPro" technology. I've seen referenced as another name for the vulnerable component --- but given the marketing-spawned confusion around Intel CPU nomenclature, I can easily imagine someone (perhaps me!) getting confused on the point.
>Ok, I'm /inclined/ to believe that this indicates that the system doesn't implement AMT at all, but I'll try to do some more research.