What should I do if the brightness of Win11 23H2 cannot be adjusted? Solution to Win11 23H2 brightness adjustment not responding

php editor Xinyi will introduce you to a common problem: in the Win11 23H2 system, sometimes the brightness cannot be adjusted. In this case, nothing happens when the user tries to adjust the brightness. This is particularly troublesome for laptop users. However, don’t worry, we have some solutions for you that can help you solve this problem. Please read on to learn how to solve the problem that the brightness cannot be adjusted in Win11 23H2.

Win11 23H2 brightness adjustment does not respond. Solution

1. Press "Win R" on the keyboard at the same time to open the run.

#2. Enter "regedit" and press Enter to confirm opening the registry.

3. Copy "Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}" into the path above.

4. Click the "0000" folder on the left and double-click to open "FeatureTestControl".

#5. Change the numerical data to "ffff", click "OK", and then restart the computer to adjust the brightness normally.

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