To update your keyboard driver
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
Open Keyboard in Control Panel.
On the Hardware tab, click Properties.
On the Driver tab, click Update Driver.
Follow the instructions that appear on your screen. You can have Windows search for the driver, or point to the driver's location yourself.
To open Keyboard, click Start, click Control Panel, click Printers and Other Hardware, and then click Keyboard.
Update your driver if your keyboard has hot keys that are not working properly. Hot keys are found on newer keyboards and are used to start programs, navigate on the Web, and switch to lower power states.