What to do if the screen brightness cannot be adjusted in Windows 10

Solution to the problem that win10 screen brightness cannot be adjusted: First open the registry editor; then find the "{4d36e968-e325-11ce-bfc1-08002be10318}" folder in the registry editor; then create a new DWORD value ;Finally modify the numerical data to 0.

#The operating environment of this article: Windows 10 system, Dell G3 computer.

Modify the system registry key value and change the value to 0. The specific operations are as follows:

1. Win r shortcut key to open run, enter regedit and click OK to open the registry editor.

2. Find the {4d36e968-e325-11ce-bfc1-08002be10318} folder (HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\) in the registry editor, As shown below.

#3. Right-click the 0000 folder, click New, and select New DWORD value.

#4. In the pop-up edit value name, fill in the string shown in the figure below, click to modify the value data to 0, and click OK as shown below.

5. Then adjust the brightness as shown in the figure below.

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