I have an Asus N550JV, and right after buying it, I installed Windows 8.1.
I downloaded all the drivers from the Asus-Homepage and installed them.
My Problem: I can't activate the keyboard-backlight anymore. Usually, I have to press fn+F4 to activate it, but it doesn't work (it's the same with some other key-combinations).
I know that the backlight still works, because it is shining for a second during booting.
My Question: What kind of driver is responsible for the keyboard-backlight, and where can I find it in the device-manager?
Does anyone know which driver I need for my Laptop?
Best Answer
Solution
Install the latest available version of the following drivers/utilities:
Note While ExpressCache has nothing to do with the keyboard, ASUS recommends to install latest version when upgrading from Windows 8 to Windows 8.1.
You can get all of them from the official support page by selecting Windows 8 (yes, not Windows 8.1) as operating system.
Further reading
(It hasn't been updated in a while, but it's still useful nonetheless.)