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This is an article that shows you how to increase or decrease the computer screen light on a laptop using Windows 7 operating system. Desktop computers use an external monitor, so the light will be adjusted by using Use the built-in button or slider on the screen.
Steps
Use the light control bar
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Click and the Power Option icon. It’s the battery icon in the lower right corner of the screen.
- You’ll have to click ▲ here first.
- If you don’t see this icon in the lower right corner of the screen, you’ll open Start and click Contrp Panel .
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Click Adjust screen brightness . This is the link near the bottom of the currently displayed window. This will open the Power Options menu.
- If you already have the Contrp Panel open, click Power Options here.
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Click and drag the “Screen Brightness” adjustment bar left or right. The adjustment bar is usually displayed at the bottom of the window. Dragging the adjustment bar to the left will reduce the laptop’s screen light, while dragging to the right will increase the light.
- If you don’t see the “Screen Brightness” adjustment bar at the bottom of the Power Options window, you will need to restore the display of this adjustment bar before changing the laptop screen light.
Restore lost light control bar display
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Open Start
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. Click the Windows icon in the lower left corner of the screen.
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Type device manager into Start. This is a search for the Device Manager program on the computer.
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Click
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Device Manager. Maybe that’s the first result in the Start window. You just need to click to open Device Manager.
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Expand the “Monitors” section. Click ► to the left of the “Monitors” heading.
- You may have to scroll down to find this option.
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Select the monitor below the “Monitors” section. When you expand “Monitors”, you’ll find the monitor name you’re looking for below; Click to select this screen.
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Click the Action tab. It’s the tab at the top of the Device Manager window.
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Click Properties . This is the option below the Action menu. This will open the screen’s properties.
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Click the Driver tab at the top of the Properties window.
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Click Uninstall. It’s near the bottom-left corner of the window.
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Wait for the driver uninstallation to complete. This process only takes a moment. When the driver uninstall is complete, the Device Manager list will be refreshed and the “Monitor” section will also disappear.
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Click the “Scan for hardware changes” button. It’s the square desktop button at the top of the Device Manager window. With this, the driver you removed will be reinstalled and updated.
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Check if your monitor already appears in the list. When Device Manager looks for changes, the monitor’s underlying Microsoft driver also reinstalls automatically. This will bring up the light adjustment bar.
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Restart the computer. You don’t have to do this to apply the change, but it costs nothing, and you won’t need to reboot your device later.
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Try adjusting the screen light . When the computer restart is complete, you will click the Power Options button in the System Tray to find the light option that has just been restored.
- If you still don’t see the dimmer bar, your computer’s graphics board probably doesn’t support this option. You can try updating the drivers for your graphics board, or try upgrading to Windows 10.
Advice
- Most laptops have a light up and down key on the keyboard. These keys are usually located at the top of the keyboard. You may have to hold down the Fn key when you want to use these keys.
Warning
- High screen brightness often causes the computer to run out of battery faster than low brightness.
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This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 27,943 times.
This is an article that shows you how to increase or decrease the computer screen light on a laptop using Windows 7 operating system. Desktop computers use an external monitor, so the light will be adjusted by using Use the built-in button or slider on the screen.
Thank you for reading this post How to Adjust Computer Screen Light on Windows 7 at Tnhelearning.edu.vn You can comment, see more related articles below and hope to help you with interesting information.
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