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Whether you are running your HP laptop on battery power or have plugged it in to an electrical outlet, you can increase the screen's brightness. However, if you want to change the brightness of your laptop's screen, you need to install a driver that is compatible with your operating system. In addition, you need to configure the operating system to use a high-contrast display mode. Increase or decrease brightness Increasing or decreasing brightness on HP laptops can be done in a few easy steps. The easiest way is by using a keyboard shortcut. The next step is to