How to Change Brightness on Windows 11 (Step-by-Step)

Windows 11 gives you more than one way to change your screen brightness, whether you want a quick adjustment from the taskbar or you prefer to use the full Settings app. This guide walks through the most common methods, along with general troubleshooting steps if your brightness controls stop responding.

Quick steps

1. Open Quick Settings from the taskbar, usually by clicking the group of icons near the clock, such as network, sound, or battery.
2. Use the brightness slider in the panel to raise or lower the screen brightness.
3. Click away from the panel to close it once you’re happy with the level.

Before you start

A few things worth knowing before you adjust brightness on Windows 11:

• If you’re using a desktop PC with an external monitor, Windows brightness controls may not work at all. Many monitors rely on their own physical buttons or on screen menu for brightness instead.
• Laptops generally offer the most reliable brightness control, since Windows can usually communicate directly with the built in screen.
• Some devices include an automatic or adaptive brightness feature that adjusts the screen based on lighting conditions or battery level. If this is turned on, it can make manual changes feel like they’re not sticking.
• Menu names and layouts can vary slightly depending on your Windows 11 version and your PC manufacturer’s software, so treat the steps below as general guidance rather than an exact match for every device.

Change brightness from Quick Settings (fastest way)

This is the method most people use day to day, since it works from almost any screen without opening a separate app.

1. Look toward the bottom right of your taskbar for the group of icons that usually includes Wi-Fi, sound, and battery, and click or tap it.
2. A panel will open with a slider for brightness, usually alongside other quick controls.
3. Drag the slider to the level you want. The screen should update as you move it.
4. Click or tap elsewhere on the desktop to close the panel.

This approach works whether you’re trying to increase brightness in a bright room or lower it for use at night.

Change brightness from Windows Settings

If you’d rather use a dedicated settings screen, or you want to see other display related options in the same place, the Settings app is a good alternative to Quick Settings.

1. Open the Settings app, for example by pressing the Windows key and selecting Settings, or by pressing Windows key + I.
2. Look for the display related settings section, which is generally found under the system settings area.
3. Within that area, you should find a brightness control that lets you drag or adjust the level directly.
4. Some devices also show a Night light or similar blue light reduction option in the same part of the settings, which you can turn on if you want a warmer tone in the evening.

Changes typically apply right away, so you can fine-tune the brightness before moving on.

Change brightness using laptop keyboard keys

Many Windows 11 laptops include dedicated brightness keys, often found on the function row and marked with a sun style icon.

1. Look along the top row of your keyboard for keys showing a sun icon, often combined with a plus or minus symbol.
2. Pressing the key associated with a brighter sun icon typically increases brightness.
3. Pressing the key associated with a dimmer sun icon typically lowers brightness.
4. On some laptops, you may need to hold the Fn key at the same time as the brightness key for it to work.

Keyboard layouts vary between manufacturers, so if you can’t spot brightness keys right away, check the documentation that came with your specific laptop model.

Change brightness on a tablet or touch device

If you’re using a Windows 11 tablet or a 2-in-1 device without a physical keyboard attached, the Quick Settings panel is usually the simplest option.

1. Open Quick Settings by tapping the relevant icons in the taskbar, or by swiping in from the edge of the screen if your device supports that gesture.
2. Tap and drag the brightness slider to the level you want.

Some tablets also include physical brightness or volume buttons on the device itself, so it’s worth checking the edges of your device as well.

If it doesn’t work

The brightness slider is missing or grayed out

This can happen when your display driver isn’t fully installed or is out of date. Check for pending updates through Windows Update, and also check your PC manufacturer’s website for a graphics driver matching your specific model. Restarting your PC after installing an update can help the new driver take effect.

Brightness changes don’t actually affect the screen

If you’re using an external monitor, Windows brightness controls often have no effect, since many monitors manage their own brightness independently. Try the physical buttons or on screen menu on the monitor itself. If you’re using a laptop with the lid closed alongside an external display, you’ll likely need to adjust brightness on that external screen directly instead.

Screen keeps dimming or brightening on its own

This usually points to an automatic or adaptive brightness feature responding to ambient light or battery status. Check your display related settings for an automatic brightness option and turn it off if you’d prefer to control brightness manually.

Keyboard brightness keys don’t do anything

Some laptops need manufacturer specific software installed before the function keys will control brightness correctly. Check whether your laptop manufacturer offers a utility or driver package related to the keyboard or display, and make sure it’s installed and up to date.

Brightness looks fine but the screen still feels too dim or too bright

Beyond the brightness slider itself, color, contrast, or HDR settings can affect how bright a screen appears. If you’ve recently turned on HDR, try toggling it off to see whether standard brightness controls feel more natural for your setup.

Frequently asked questions

How do I increase brightness on Windows 11 quickly?

The fastest option is usually to open Quick Settings from the taskbar and drag the brightness slider upward. This generally works on laptops and tablets without needing to open any other app.

How do I lower brightness on Windows 11 at night?

You can use the same Quick Settings slider and drag it downward. Some devices also offer a Night light or similar feature in the display settings area, which can make the screen feel easier on the eyes in low light.

Why can’t I change brightness on my Windows 11 desktop PC?

If you’re using an external monitor, Windows brightness controls often don’t apply, since the monitor usually manages its own brightness. Try the physical buttons or on screen menu on the monitor instead.

Does Windows 11 have an automatic brightness setting?

Some laptops support an automatic or adaptive brightness feature that reacts to ambient light or battery level. Where this exists, it’s typically found in the display related settings and can usually be turned off if you prefer manual control.

Why did my brightness slider disappear from Quick Settings?

This is often related to outdated or missing display drivers. Checking Windows Update and your laptop manufacturer’s driver download page can help, and restarting your PC afterward lets the change take effect.

Related guides

• How To Stop Teams Loading Up After Logging In
• How to Disable OneDrive on Windows 10 and 11
• How to Remove OneDrive from Your PC

Sources

• Windows client documentation (Microsoft Learn)
• Windows Documentation (Microsoft Learn)