Fortunately, there are several ways to adjust the screen and on HP laptops on Windows Here are 4 different ways to adjust the brightness on HP laptops and also on other laptops that are running Windows Increasing or decreasing the brightness of the screen via the keyboard shortcut is the easiest way. So, in this guide, you will learn how to adjust the brightness on the HP laptops on Windows However, Changing the brightness is helpful when you work in various places with varying lighting conditions.