How to Control the Brightness of Your Computer With Windows 7

A quick and simple guide to controlling the brightness of your display with Windows 7

Co-authored by Luigi Oppido and Jack Lloyd

Last Updated: September 27, 2024 Fact Checked

This wikiHow teaches you how to raise or lower your computer's brightness on Windows 7 laptop. Most desktop computers use an external monitor, meaning that the brightness must be altered by using the monitor's physically built-in buttons or brightness switch.

Method 1

Method 1 of 2:

Using the Brightness Slider

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1
Click the Power Options icon. It's the battery-shaped icon in the bottom-right corner of the screen.
- You may first have to click ▲ in this area.
- If you don't see this icon anywhere in the bottom-right side of the screen, open Start and click Control Panel.^{[1]
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2
Click Adjust screen brightness. This link is near the bottom of the pop-up window. Doing so will open the Power Options menu.
- If you had to open Control Panel, click Power Options here instead.
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3
Click and drag the "Screen Brightness" slider left or right. This slider is at the bottom of the window. Dragging it left will reduce your laptop's screen brightness, while dragging it right will increase the brightness.^{[2]
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- If you don't see the "Screen Brightness" slider at the bottom of the Power Options window, you'll need to restore it before you can adjust your laptop's brightness.

Method 2

Method 2 of 2:

Restoring a Missing Brightness Slider

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Click the Windows logo in the bottom-left corner of the screen.
This will search your computer for the Device Manager program.
It should be the top result in the Start window. Clicking it will open the Device Manager.
4
Expand the "Monitors" category. Click ► on the left side of the "Monitors" heading.
- You may have to scroll down to find this option.
When you expand "Monitors", you should see a monitor name indented below it; click this monitor to select it.
It's at the top of the Device Manager window.
This option is at the bottom of the Action drop-down menu. Doing so opens your monitor's properties.
It's at the top of the Properties window.
It's near the bottom-left corner of the window.
This only take a moment. Once the driver has uninstalled, your Device Manager list will refresh, and you will notice that the "Monitor" category is gone.
It's the square, computer monitor-shaped button at the top of the Device Manager window. Doing so will reinstall and update the driver that you just removed.
Once the Device Manager scans for changes, it will automatically reinstall the basic Microsoft driver for your monitor. This should re-enable the brightness slider.
This may not be necessary for your changes to take effect, but can't hurt and may save you a step later.
14
Try to adjust your brightness. Once your computer reboots, click the Power Options button in the System Tray to find your restored brightness options.^{[3]
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- If you still don't have a brightness slider, your graphics adapter may not support it. You can try to update the drivers for your graphics adapter, or you can try to upgrade to Windows 10.

Community Q&A

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Question

I can't find the "Monitor" option, where can I find it?

Zuubytron

Community Answer

You can find it in "control panel." Press the start icon with the flag in the bottom left and then select something called "control panel." Once in there, type, "Display Brightness" on the search bar and it should pull up a setting to change it!

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Question

I was reducing the brightness on the monitor and it went all black. How do I fix it?

Community Answer

First, make sure you didn't turn the brightness all the way down. If that's not the issue, reboot your PC or try to update your graphics driver.

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Almost every laptop has a "Brightness Up" key and a "Brightness Down" key on the keyboard. These keys are usually found at the top of the keyboard. You may have to hold down the Fn key to use them.^{[4]
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