Select action center on the right side of the taskbar, and then move the Brightness slider to adjust the brightness. (If the slider isn't there, see the Notes section below.)

Feb 22, 2026 · Steps on how to adjust the brightness or contrast on a Windows laptop, MacBook, and Chromebook using the fn and function keys and in software.

Jun 21, 2026 · Is your PC monitor too bright or too dim? You can easily adjust the screen brightness of your Windows 10 computer in the Settings menu. You can also change the screen brightness in the …

Jul 22, 2021 · This tutorial will show you different ways to change the brightness level of a built-in display and external displays in Windows 11. You may need to occasionally adjust the brightness level of …

Jan 28, 2024 · We show you all possible methods to adjust display brightness on Windows 10 and Windows 11 for battery-driven laptops and tablets or desktop PCs with external display.

Oct 23, 2022 · When you're in a dark room, you'll want it dim so it doesn't hurt your eyes. Decreasing your screen brightness will also help you save power and increase your laptop's battery life. Aside …

Oct 8, 2025 · The easiest and fastest way to reduce or increase the brightness in Windows 11 is to use a keyboard brightness shortcut key. Of course, this can be one key only, but on most laptops, it’s …

May 17, 2026 · For office work, many people are comfortable around 40% to 70% brightness on a laptop, but the ideal level varies widely by display. For battery life, dim the screen as much as you …

Mar 20, 2018 · Open the Settings app from your Start menu or Start screen, select “System,” and select “Display.” Click or tap and drag the “Adjust brightness level” slider to change the brightness level....

Measure your monitor's brightness levels with adjustable white windows (5% to 100%). Test screen luminance and find comfortable settings for your environment.