We need to know more information about your computer before we can help you at all. But it sounds like you have the same computer as I (HP pavilion G6-series A4-3305m?) Or something around there. So check out the HP website and find the drivers for your laptop http://www8.hp.com/ca/en/support-drivers.html
Or... Get a copy of Drivertuner or some other software to easily update your drivers.