Upgrading Drivers

Hi everybody .I Got a question ! How can i upgrade my drivers …
Example my graphic card’s drivers
Answer #1
If you have nVidia graphics card
http://www.nvidia.com/Download/index.aspx?lang=en-us
If you have ATi graphics card
http://support.amd.com/us/gpudownload/Pages/index.aspx
Answer #2
Okay thx