If this is not working for you follow the second steps. On some HP laptops, you only need to press F2 or F3 to adjust the brightness.
You can locate these keys on top of your HP keyboard, normally from F1 to F12, which also known as the function key.
F2 will decrease the brightness while F3 increases the brightness. These are the most common keyboard shortcut keys for HP laptops in order to increase or decrease the screen brightness. However, you can’t tell which exact keyboard keys are for adjusting the brightness of the screen on HP laptops. Luckily, on most of the keyboards including HP, there are keys specially designed to help you modify the screen brightness with ease. Increasing or decreasing the brightness of the screen via the keyboard shortcut is the easiest way. Adjust the Brightness on HP Laptops on Windows 10 Using Keyboard Keys
Here are 4 different ways to adjust the brightness on HP laptops and also on other laptops that are running Windows 10. Adjust the Brightness on HP Laptops using Settings App How to Change HP Laptop Brightness
