Slartybart said:
Troy6 provided the solution.

Update to SP1

Troy6 said:
As has been stated several times the update is only applicable if you have service pack 1 (SP1) installed already. Your dxdiag screen shot shows that you do not have SP1 installed. It says your version is (6.1, Build 7600). If it had SP1 installed then it would say (6.1, Build 7601). If you want to have access to the new feature, you need to install SP1........
I'd also like to re-state my experience. The update cannot be obtained and installed manually, and has to be obtained VIA the windows update mechanism (check "optional")