What to do if the brightness adjustment is missing in Windows 7

Sometimes the screen brightness is too bright for a long time and can damage the eyes. Then we can adjust the screen brightness through the system brightness adjustment function, but what happens if we find that our win7 system cannot adjust the brightness? Today, the editor is here to tell you how to solve the problem of missing brightness adjustment in Windows 7. Let’s take a look together.

Method 1.

1. If it is a desktop computer, there is usually a button to adjust the screen brightness in the lower right corner of the monitor, which can be adjusted with the plus and minus signs.

#2. If it is a notebook, you can adjust it through shortcut keys. Generally, the F key above will be marked with a brightness adjustment icon. The shortcut keys for adjusting the brightness of the editor's notebook are Fn (function key) F2 (weak), Fn (function key) F3 (strong).

Method 2: Modify the win7 registry value to retrieve win7 brightness adjustment

1. Press the win R shortcut key on the keyboard to open the run window. Enter the regedit command and click OK.

2. Expand the path HKEY_LOCAL_MACHINE \ SYSTEM \ ControlSet001 \ Control \ Class \ {4d36e968-e325-11ce-bfc1-08002be10318} in the registry editor, and then open the 0000 file .

3. Then find the KMD_EnableBrightnessInterface2 file, right-click and select modify. If it is not found, create a new Word value and change its name to the file name.

#4. Modify the numerical data to 0 and click OK.

The above is the solution to what to do if the brightness adjustment is missing in win7. I hope it can help everyone.

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