How can I update the graphics driver and where do I find the current driver versions?
You can find the latest graphics card driver on the website of the graphics card producer.
Please note that the newest graphics drivers must fit the operating system. A driver which was developed for windows XP, for example, cannot be used under Windows 8.
On the corresponding website, there is usually a link "Driver" or "Download."
First, read the installation instruction. Select the model of the graphics card and of the operating system. After these specifications, you can usually download an executable file.
Save the file in any folder, and run it after the download.
Some manufacturers (for example, Nvidia), offer only one driver for different models of graphics cards.