Go Here:
http://support.amd.com/en-us/download
Under "Manually Select your Driver" make the following selections:
Select the type of product that you have: - Desktop Graphics
Select the product family your product belongs to: - Radeon HD Series
Select your product: - Radeon HD 4xxx Series PCIe
Select the supported operating system that you have: -
Select your operating system
Note: If you are using Windows 10, then your card is not officially supported. You can try either Windows 7 or Windows 8 drivers instead and they may work. Just be sure, if you're running a 64-bit OS, that you select the 64-bit version of the driver. If you are running a 32-bit OS, then make sure you select the 32-bit version of the driver.
Next, click the "Display Results" button. On the following page, select the download button for the Catalyst Software Suite.
-Wolf sends