Click on "check your system for the latest updates". after clicking install all popups
After loading finishes, all the supported drivers will be displayed. Simply click download and save !!!
Click on "Download Now " to download small utility
Install utility and it will scan and show the latest driver for ATI graphic cards
Click on "GRAPHIC DRIVERS" for auto detection of graphic drivers
After clicking on "GRAPHIC DRIVERS" you will see following screen click "Run"