If you cannot turn on the Backlit keyboard or the keyboard backlight is not working in Windows 11/10 desktop or laptop, see this post.

Not all HP laptops are identical, but for activating the HP keyboard backlight, you have several options. This guide explains how to turn on keyboard backlighting, and while there might be some ...

Press the F5, F9, or F11 key to turn your HP laptop keyboard light on or off. Some HP laptops need the Fn key pressed with the light key to activate the keyboard light. If these keys don't work ...