There are many ways to adjust the screen brightness of HP laptops, depending on the different models of laptops. Typically, you can follow these steps:
1. Find the brightness adjustment key on the keyboard. Most laptops will have a sun or light bulb icon on the keyboard as a brightness adjustment key. Some notebooks may require pressing the "Fn" (function) key and the brightness adjustment key at the same time to take effect.
2. Use the brightness adjustment keys to increase or decrease the screen brightness. By pressing the corresponding brightness adjustment key, you can see a slider on the screen showing the current brightness level.
3. If you are using Windows operating system, right-click on the desktop and select "Display Settings", then click on the "Display" tab, where you can find a slider to control the overall brightness of the screen.
4. For Mac users, you can increase or decrease screen brightness by pressing F1 and F2. Alternatively, open System Preferences and select the Displays tab, where you'll find a slider to control the overall brightness of the screen.
If the above method cannot solve the problem, it is recommended to refer to the user manual provided by HP's official website for more detailed and model-specific guidance.