Then you can opt to go into the BIOS settings.) (On newer computers, you need to hold down the 'esc' key. Press the f10 key to open the BIOS setup window. Press the power button to turn on the computer. To disable, or enable, the function key (fn) in the BIOS, do the following steps. In fact, you can reverse the process and make it so that you need to hit the 'fn' key to adjust screen brightness and so on. On the HP Envy notebooks and other notebooks with advanced BIOS options, the function keys can be configured so that it is not necessary to press and hold the fn key. It is necessary to press and hold the function key (fn) while pressing one of the f1 through f12 keys to activate the default functions such as, increasing or decreasing the brightness of the display, the sound volume, sleep, keyboard lock, etc.
I appreciate the steps you have performed and have certainly done a good job. I read that you have an HP Pavillion 17 laptop and the brightness and the volume keys do not work. I came across you post and would like to help. Would like to take a moment to thank you for posting on the HP Support Forums.
