The following Discrete AMD Radeon™ Graphics products support up to WDDM 1.1 and DirectX® 10.1:
ATI Radeon™ HD 4000 Series /ATI Mobility Radeon™ HD 4000 Series Graphics
ATI Radeon™ HD 3000 Series /ATI Mobility Radeon™ HD 3000 Series Graphics
ATI Radeon™ HD 2000 Series /ATI Mobility Radeon™ HD 2000 Series Graphics
These graphics products must be installed using display driver version: 8.970.100.9001. This driver is provided as a courtesy and only available via Windows Update. Please enable Windows Update and allow it to detect and install the appropriate driver.
Please refer to the following link for more information.