Adjusting your Windows display does not have to be complicated. Start with Settings > System > Display and set the brightness to a comfortable level. If you use an external monitor, remember that its physical controls are usually the place to adjust brightness and contrast.
For better readability, Windows also provides Contrast themes under Accessibility settings. If brightness controls are missing or stop working, check your display and graphics drivers and confirm whether your monitor supports Windows-based brightness control.
Let’s learn everything in detail!
Adjusting Display Brightness and Contrast on Windows

Quickest Steps:
- To adjust brightness in Windows 11, go to Settings > System > Display and use the Brightness slider.
- To adjust brightness in Windows 10, go to Settings > System > Display and move the Change brightness slider.
- To adjust an external monitor, use its physical buttons or on-screen menu to change brightness and contrast.
- To improve readability, go to Settings > Accessibility > Contrast themes in Windows 11 and choose a suitable contrast theme.
- To adjust contrast on a monitor, open the monitor’s on-screen display menu and change the Contrast setting.
- If the brightness option is missing, check the display driver, Windows display settings, and whether you are using an external monitor.
Step 1: Open Windows Display Settings
The easiest place to start is Windows Display settings. This is where Windows provides the main controls for your screen, including brightness on supported displays.
On Windows 11, open Start > Settings > System > Display. You will see information about your connected display near the top of the page. Scroll to the Brightness & color section. If your display supports Windows brightness control, you should see a brightness slider.
On Windows 10, go to Start > Settings > System > Display. Look for the Brightness and color section. You can then use the available brightness control to make the screen brighter or darker.
If you are using a laptop, this setting will normally work with the laptop’s built-in screen. If you are using a desktop PC with a separate monitor, Windows may not provide the same brightness control.
Step 2: Adjust the Screen Brightness
Once you have opened the display settings, locate the Brightness slider. Drag it toward the higher end if the screen looks too dark. Move it toward the lower end if the display feels uncomfortably bright.
A good brightness level depends on your surroundings. For example, a brighter setting may be easier to see in a well-lit room, while a lower setting may be more comfortable at night.
On Windows 11, go to Start > Settings > System > Display > Brightness & color and adjust the available brightness slider. On Windows 10, go to Start > Settings > System > Display > Brightness and color and use the corresponding control.
Avoid setting the brightness to maximum unless you actually need it. A screen that is much brighter than the surrounding environment can make reading uncomfortable.
Step 3: Adjust Brightness From Quick Settings
Windows 11 also gives you a faster way to change brightness without opening the full Settings app.
Go to the Taskbar > Network, Sound, or Battery area > Quick Settings. Look for the Brightness slider and drag it left or right. This is particularly useful when you need to quickly change brightness while moving between different lighting conditions.
If you are using Windows 10, you can access similar controls through Taskbar > Action Center > Brightness control, depending on your system configuration.
If you do not see a brightness slider, your device or display may not expose brightness control through Windows. This is especially common with some external monitors.
Step 4: Use the Keyboard Brightness Controls
Many laptops include dedicated brightness keys on the keyboard. These keys usually have a small sun-shaped symbol or a similar brightness icon.
Look across the function-key row for the brightness controls. On some laptops, you may need to hold Fn while pressing the appropriate brightness key.
For example, go to Laptop Keyboard > Brightness key or use Fn + brightness key, depending on your manufacturer’s keyboard design. The exact shortcut varies between laptop models.
If the keyboard shortcut does not work, check whether the manufacturer’s keyboard or hotkey software is installed and functioning correctly. A missing or outdated driver can also affect special function keys.
Step 5: Adjust Contrast on an External Monitor
Unlike brightness, contrast is not normally controlled by the standard Windows Display settings. If you have a separate monitor, the monitor itself usually provides the contrast adjustment.
Find the physical buttons on the monitor. Depending on the model, these may be located underneath the screen, on the back, or along the side.
Go to Monitor buttons > Menu > Picture or Display > Contrast. Use the monitor controls to increase or decrease contrast. The names and locations of these options vary between manufacturers.
When adjusting contrast, avoid pushing it too high. Excessive contrast can make bright areas lose detail and may make some text or images look harsh.
Step 6: Adjust Contrast Through Windows Accessibility Settings
Windows also includes Contrast themes, which are designed primarily to improve visibility rather than simply change the monitor’s contrast level.
In Windows 11, go to Start > Settings > Accessibility > Contrast themes. Select a theme from the available options, preview it, and choose Apply if it improves visibility for you.
In Windows 10, go to Start > Settings > Ease of Access > High contrast. You can then turn on the available high-contrast option and customize the appearance.
This setting is different from changing your monitor’s physical contrast level. Instead, Windows changes how colors, backgrounds, text, and other interface elements are displayed.
Step 7: Turn Off Automatic Brightness Changes if Needed
Some laptops can automatically change brightness based on lighting conditions, battery settings, or other display features. If your brightness keeps changing, check the available display options.
Go to Start > Settings > System > Display and review the options under Brightness & color. Depending on your hardware, you may see settings related to automatically adjusting brightness or changing brightness based on content.
If the screen repeatedly becomes brighter or darker while you are working, check these options and disable automatic adjustments if they are available and you prefer manual control.
Keep in mind that not every Windows computer provides the same options. The available controls depend on the display hardware, graphics driver, and Windows version.
Step 8: Check Your Display Driver if Brightness Controls Are Missing
If Windows does not show a brightness control on a laptop screen, the problem may be related to the display or graphics driver.
Go to Start > Device Manager > Display adapters and expand the section. You should see the graphics adapter installed on your computer. You can also check Monitors for monitor-related devices.
An outdated, damaged, or incompatible driver can sometimes cause display controls to behave incorrectly. If the issue started after a driver update, checking for a newer driver or reviewing available driver options may help.
For laptops, it can also be useful to check the computer manufacturer’s support software for recommended graphics and display drivers.
Step 9: Adjust the Monitor’s Picture Mode
Many modern monitors provide picture presets such as Standard, Reading, Movie, Game, or sRGB. These modes can change brightness, contrast, color temperature, and other display characteristics.
Go to Monitor buttons > Menu > Picture Mode and review the available modes. Choose a mode that matches what you are doing.
For everyday documents and web browsing, a neutral or reading-oriented mode may be more comfortable. For photo or video work, you may prefer a mode designed for more accurate colors.
If you make several adjustments and the screen starts looking worse, use the monitor’s Reset option to return its picture settings to their previous defaults.
Step 10: Fine-Tune Brightness and Contrast Together
Brightness and contrast work together, so adjusting only one setting may not produce the result you want.
Start with a moderate brightness level. Then adjust contrast using the monitor’s on-screen controls if you have an external display. Look at black text on a white background and check whether both dark and light areas remain easy to distinguish.
For normal office work, you generally want text to be clear without the white background appearing excessively bright. For photos and videos, check whether you can still see details in both shadows and highlights.
Take a few moments to compare the screen under the lighting conditions where you normally work. That usually gives you a more useful result than choosing a setting based only on how the screen looks for a few seconds.
FAQs
Why can’t I find the brightness slider in Windows?
If you are using a desktop monitor, Windows may not provide a brightness slider because the monitor controls its own brightness. Use the monitor’s physical controls instead. On a laptop, missing brightness controls can also be related to a graphics or display driver issue.
How do I make my Windows screen brighter?
Go to Settings > System > Display > Brightness & color and move the Brightness slider toward the higher end. You can also use the brightness keys on many laptops.
How do I change contrast in Windows?
Windows does not generally provide a standard monitor contrast slider. For a physical monitor, go to Monitor menu > Picture or Display > Contrast. For improved Windows interface visibility, you can use Settings > Accessibility > Contrast themes.
Why does my screen keep changing brightness?
Automatic brightness or content-based display adjustments can cause this behavior on supported hardware. Go to Settings > System > Display and review the available brightness-related options.
Should brightness or contrast be higher?
There is no single setting that works for every person or environment. Adjust brightness according to the room lighting and then fine-tune contrast so text and images remain clear without losing detail.
Can I adjust brightness without opening Settings?
Yes. On many Windows laptops, you can use the keyboard brightness keys. Windows 11 also provides a Brightness slider in Quick Settings on supported systems.