Your screen brightness has a direct effect on how comfortable your eyes feel while using a Windows PC. A screen that is too bright can feel harsh in a dark room, while a screen that is too dim can make text, photos, and videos difficult to see in a bright environment. Fortunately, Windows 11 and Windows 10 give you several straightforward ways to adjust your display brightness.
Whether you are using a laptop, tablet, or desktop PC, you can usually change brightness through Windows Settings, Quick Settings, your keyboard, or your monitor’s physical controls. The exact options you see can depend on your device and display hardware.
In this guide, you will learn how to adjust display brightness settings easily in Windows 11/10.
Adjust Display Brightness Settings Easily in Windows
To adjust display brightness settings in Windows:
- In Windows 11, go to Start > Settings > System > Display, then move the Brightness slider to the level you want.
- To adjust brightness quickly in Windows 11, press Windows + A to open Quick Settings, then move the brightness slider.
- To adjust brightness in Windows 10, go to Start > Settings > System > Display, then use the Change brightness slider.
- You can also use your laptop’s brightness function keys if your keyboard provides them.
- If you are using an external monitor, change brightness using the monitor’s physical buttons or on-screen menu, because Windows may not provide a brightness slider for that display.
Before changing anything, make sure you are adjusting the correct display if you have multiple monitors connected. Windows may show separate display controls depending on your hardware and configuration.
Step 1: Open Windows Display Settings
Start by opening the Display settings page. In Windows 11, select Start > Settings > System > Display. You can also right-click an empty area of the desktop and select Display settings.
In Windows 10, select Start > Settings > System > Display. The layout looks somewhat different from Windows 11, but the brightness controls are located within the display settings area.
This page is where Windows manages several important screen options, including brightness, color, display resolution, scale, orientation, and multiple-display settings.
If you have more than one monitor connected, check the display diagrams near the top of the page. Select the display you want to configure before changing its available settings.
Step 2: Adjust the Brightness Slider
Once you are on the Display settings page, look for the Brightness or Brightness & color section. You should see a slider that you can move from left to right.
Move the slider toward the left to make the screen darker. Move it toward the right to make the screen brighter.
There is no universal brightness level that works for everyone. A comfortable setting depends on the lighting around you. For example, you may want a lower brightness level when working in a dim room and a higher setting when using the laptop outdoors or near a bright window.
After adjusting the slider, look at text and other content on the screen for a few seconds. If you can read comfortably without squinting, the brightness is probably closer to what you need.
Step 3: Change Brightness from Quick Settings in Windows 11
Windows 11 provides a faster way to adjust brightness without opening the full Settings application.
Press Windows + A on your keyboard to open Quick Settings. Depending on your device, you should see a brightness slider among the available controls.
Drag the slider left or right until the display reaches a comfortable level. This method is particularly useful when you need to change brightness frequently throughout the day.
For example, you might lower the brightness while watching a movie in a dark room and increase it again when you start working near a window.
If the brightness control is not available, your display hardware may not support brightness adjustment through Windows, or Windows may not be communicating correctly with the display driver.
Step 4: Adjust Brightness in Windows 10
If you are using Windows 10, open Start > Settings > System > Display. Under the Brightness and color section, look for the brightness adjustment control.
Move the Change brightness slider until the screen looks comfortable.
Some Windows 10 computers also provide brightness controls through the Action Center. Select the notification icon on the taskbar to open the available quick controls. Depending on your Windows version and hardware, you may find a brightness control there.
The exact layout can vary between Windows 10 devices, so do not worry if your screen does not look exactly like another computer.
Step 5: Adjust Brightness Automatically When Available
Some laptops support automatic brightness adjustment. This feature can change the screen brightness based on surrounding lighting or other device conditions.
If your computer provides related options, go to Start > Settings > System > Display and look through the available brightness settings. You may see an option related to automatically adjusting brightness or changing brightness based on lighting conditions.
Not every Windows computer supports this feature. If you do not see the option, that does not necessarily mean something is wrong with Windows.
Automatic brightness can be convenient, but some people prefer manual control because they want the screen to remain at a consistent brightness level.
Step 6: Adjust Brightness on an External Monitor
If you are using a desktop PC with an external monitor, you may not see a normal Windows brightness slider. This is common because many external monitors manage brightness independently from Windows.
Look along the front, side, or bottom edge of the monitor for physical buttons or a small joystick-style control. Press the appropriate button to open the monitor’s on-screen display menu.
From there, look for an option such as Brightness, Picture, or Display. Select the brightness control and adjust it using the monitor’s controls.
This is especially important when Windows shows no brightness slider for your external monitor. In that situation, changing Windows display settings may not affect the monitor’s actual backlight brightness.
Check the Display Driver if Brightness Does Not Work
If the brightness slider is missing, disabled, or does not change the screen, the problem may involve your display driver.
Right-click the Start button and select Device Manager. Expand Display adapters and look for the graphics hardware listed there.
You can also check Monitors to see how Windows identifies the connected display.
A driver problem can prevent Windows from communicating properly with your display. If the problem started after a driver or Windows update, checking for an updated or compatible driver may help.
Be careful when changing driver settings if you are not familiar with Device Manager. Avoid removing hardware or drivers simply because the brightness control is missing.
Adjust Display Brightness Settings in Windows With Keyboard Shortcuts
Using the keyboard is often the fastest way to adjust brightness on a laptop. Many laptop keyboards include dedicated brightness keys, usually represented by a sun-shaped symbol.
Look across the function-key row for keys displaying a sun icon or similar brightness symbol. On some laptops, you can press the brightness key directly. On others, you may need to hold Fn while pressing the appropriate function key.
The exact key combination varies by manufacturer and laptop model. For example, one computer may use Fn + a function key, while another may allow the brightness key to work without Fn.
If the keyboard shortcut does not work, check whether your laptop has an Fn Lock feature. The keyboard may also require the manufacturer’s keyboard or system-control software to be working correctly.
Windows itself does not use one universal brightness shortcut that works on every laptop. The available keyboard controls depend largely on the computer manufacturer and keyboard hardware.
For a desktop computer with an external monitor, keyboard brightness keys may not control the monitor. In that case, use the monitor’s physical controls or its on-screen menu.
FAQs
Why can’t I find the brightness slider in Windows?
The brightness slider may be unavailable when Windows cannot control the connected display directly. This is particularly common with external monitors. Check the monitor’s own controls. If you are using a laptop and the slider is missing, checking the display driver and Windows updates may help.
How do I make my Windows 11 screen brighter?
Go to Start > Settings > System > Display and adjust the Brightness slider toward the right. You can also press Windows + A and use the brightness control in Quick Settings when it is available.
How do I lower brightness in Windows 10?
Go to Start > Settings > System > Display and move the brightness slider toward the left. You can also use your laptop’s supported brightness keyboard shortcut.
Why does my external monitor not have a brightness slider?
Many external monitors control brightness independently through their own hardware. Use the monitor’s physical buttons or on-screen display menu to change its brightness.
Can I use keyboard shortcuts to change brightness?
Yes. Many laptops have dedicated brightness keys. Depending on the keyboard, you may need to press Fn together with the appropriate function key. The exact shortcut varies by computer manufacturer.
Should I keep my screen brightness at 100 percent?
Not necessarily. A very bright display is not always more comfortable. Choose a level that makes the screen easy to read while matching the lighting in your environment. You may prefer a higher setting in bright surroundings and a lower setting in a darker room.
Why does my brightness keep changing automatically?
Your computer may support automatic brightness adjustment or another power and display feature that changes brightness. Check Settings > System > Display for available automatic brightness options and review your device’s power settings if the behavior continues.
Bottom Lines
Adjusting your display brightness in Windows 11 and Windows 10 is usually quick once you know where to look. For a laptop, the most direct method is to open Start > Settings > System > Display and adjust the brightness slider. Windows 11 users can also use Windows + A to access Quick Settings more quickly.
If your laptop supports brightness keys, the keyboard shortcut can be even faster. For an external monitor, however, you will often need to use the monitor’s own brightness controls.
If the brightness control is missing or does not respond on a laptop, check the display driver, connected display, and available Windows settings.
Once you find the method that works with your hardware, changing brightness becomes a simple adjustment you can make whenever your viewing environment changes.