Hey there, ever found yourself squinting at your screen because it’s too bright, or leaning in trying to see what’s what because it’s too dim? Changing the screen brightness on your Windows 10 computer is super easy, and thankfully, there are a few different ways to do it. You can quickly adjust it using the Action Center, dive into your Display settings for more control, or even use special keys on your keyboard. We’re going to walk through each method so you can find the one that feels best for you and your eyes. It is all about making your screen comfortable to look at.
Tutorial – How to Change Brightness on Windows 10
Adjusting your screen’s brightness in Windows 10 is a simple task that makes a big difference for your comfort and eye health. Let’s explore the most common and effective ways to get your display just right.
Step 1: Use the Action Center quick setting.
This is arguably the fastest way to adjust your screen’s brightness, perfect for quick on-the-fly changes.
To access the Action Center, look for the notification icon, often a speech bubble, in the bottom-right corner of your screen, right next to the clock. Click on it, and a panel will slide open from the right. Inside this panel, you will see a slider, usually labeled with a sun icon, that lets you drag it left or right to decrease or increase your screen’s brightness. It is like a dimmer switch for your computer.
Step 2: Go through the Display Settings.
For a more traditional approach, or if you prefer using menus, the Display Settings give you a clear slider to get things just right.
You can get to Display Settings by right-clicking anywhere on your desktop background where there are no icons, and then selecting “Display settings” from the menu that pops up. Once the Settings window opens, you should immediately see a “Display” section with a brightness slider. Just like in the Action Center, you can drag this slider to make your screen brighter or dimmer, giving you precise control over your display.
Step 3: Try keyboard shortcuts.
Many laptops and some desktop keyboards come with dedicated function keys that let you adjust brightness without even touching your mouse.
Look for keys on your keyboard, usually among the “F” keys (F1, F2, F3, etc.), that have small sun icons. One icon might show a sun with an arrow pointing down, and another with an arrow pointing up. You might need to hold down the “Fn” key, often found near the bottom left of your keyboard, while pressing these F-keys to make them work. These shortcuts are incredibly handy for quick adjustments, especially if you are watching a movie or playing a game and do not want to interrupt what you are doing.
Step 4: Adjust power plan settings.
This method is a bit more advanced and lets you set different default brightness levels depending on whether your computer is plugged in or running on battery power.
To get here, type “Edit power plan” into the Windows search bar and open the result. Then, click on “Change advanced power settings.” In the new window that appears, scroll down and expand “Display,” and then “Display brightness.” Here, you can set specific brightness percentages for when your computer is on battery and when it is plugged in, which can be great for saving battery life or ensuring your screen is always bright enough when you are working.
After you have completed any of these steps, your screen’s brightness will change instantly. You will immediately notice the difference, making it easier on your eyes whether you are working in a dimly lit room or trying to see your screen in bright sunlight.
Tips for Changing Brightness on Windows 10
- Consider Adaptive Brightness: Some devices have an “adaptive brightness” feature that automatically adjusts the brightness of your screen based on the surrounding light. You can often find this setting in the “Display settings” or “Power Options.” If your screen is changing brightness on its own, this might be why.
- Check Your Monitor’s Physical Buttons: If you are using a desktop computer, or even some laptops connected to external monitors, remember that your monitor itself often has physical buttons to adjust brightness, contrast, and other settings. Windows settings usually control the laptop’s built-in screen, but for external displays, the monitor’s own controls are key.
- Update Your Display Drivers: If you are having trouble changing brightness or if the slider seems to be missing, outdated display drivers might be the culprit. A quick trip to your device manufacturer’s website or Windows Update can often solve this.
- Use Night Light for Eye Comfort: While not strictly brightness, Windows 10’s “Night Light” feature reduces blue light from your screen, making it warmer and easier on your eyes, especially in the evening. You can schedule it or turn it on/off manually in Display settings.
- Brightness and Battery Life: Remember that a brighter screen uses more power. If you are trying to extend your laptop’s battery life, simply lowering the brightness can make a noticeable difference in how long your device lasts between charges.
Frequently Asked Questions
Why can’t I change the brightness on my desktop PC?
If you are using a desktop computer with a separate monitor, the brightness controls in Windows 10 might not affect it. Most desktop monitors have physical buttons, usually on the bezel, that you use to adjust the display’s brightness.
My brightness slider is missing. What should I do?
A missing brightness slider is often due to outdated or corrupt display drivers. Your best bet is to open Device Manager, find your display adapters, right-click each one, and select “Update driver.” Sometimes reinstalling the driver or downloading the latest version directly from your graphics card manufacturer’s website (e.g., NVIDIA, AMD, or Intel) can fix this.
Does changing brightness save battery life?
Absolutely! A brighter screen requires more power from your battery to light up all those pixels. By reducing your screen’s brightness, especially when you do not need it to be super bright, you can significantly extend your laptop’s battery life, helping you work or play longer on the go.
What is “adaptive brightness,” and should I use it?
Adaptive brightness is a feature on some devices that uses an ambient light sensor to automatically adjust your screen’s brightness based on the lighting conditions around you. It is meant to provide optimal viewing comfort and can save battery. Whether you should use it depends on your preference; some people love the automatic adjustments, while others prefer manual control.
Can I set different brightness levels for different times of day?
Windows 10 does not have a built-in feature to schedule specific brightness levels throughout the day. However, you can use the Night Light feature to automatically adjust your screen’s color temperature to a warmer setting in the evenings, which can feel like a subtle brightness adjustment. For true scheduled brightness changes, you might need to look into third-party software.
Summary
- Use the Action Center slider.
- Adjust in Display Settings.
- Try keyboard shortcuts.
- Modify power plan.
Conclusion
Adjusting your screen’s brightness might seem like a small detail, but it profoundly impacts your daily computer experience. Think about it, your screen is the window to your digital world, and if that window is too dark or blindingly bright, it can quickly lead to eye strain, headaches, and a general sense of discomfort. We have explored several straightforward methods to change brightness on Windows 10, from the speedy Action Center slider to the more detailed Display Settings, and even handy keyboard shortcuts. Each method offers a quick path to a more comfortable viewing experience, letting you tailor your display to your environment and personal preferences.
It is like adjusting the lighting in your home; you would not keep the lights blazing bright for a cozy movie night, nor would you try to read a book in near darkness. Your computer screen is no different. Finding that sweet spot of brightness can significantly reduce eye fatigue, especially if you spend long hours in front of your PC, whether for work, school, or entertainment. Plus, for laptop users, tweaking brightness is an excellent secret weapon in the battle for longer battery life. A dimmer screen often means more minutes, or even hours, away from the power outlet. So, take a moment to play around with these settings. Experiment with what feels right in different situations. You might be surprised at how much more comfortable and productive you become just by mastering how to change brightness on Windows 10. It is a simple tweak, but one that truly makes a world of difference for your eyes and your overall well-being. Make your display work for you, not against you.

Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.