Hi
I’ve been discussing this with our Compatibility team and Windows 7 doesn’t have a Service Pack 2. The code in your dxdiag is (6.1, Build 7600) which suggests that no service pack is actually installed. Which makes sense because this is the error you should see if it isn’t installed.
Try downloading Service Pack 1 from the Microsoft website and see if it fixes the issue.
(Note: A Service Pack 2 does exist for Vista and Windows 8)