What should I do if the brightness adjustment in Win11 does not work? Solution to Win11 brightness adjustment failure-Windows Series-php.cn

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What should I do if the brightness adjustment in Win11 does not work? Solution to Win11 brightness adjustment failure

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Feb 13, 2024 am 10:54 AM

win11win11 systemComputer brightness cannot be adjusted

php Xiaobian Yuzai provides you with a solution to the problem that Win11 brightness adjustment is invalid. When using win11 system, we sometimes encounter the problem of brightness adjustment failure, which brings certain troubles to our use. If you have also encountered this problem, don’t worry. Below we will introduce you to several common solutions to help you solve the problem of invalid brightness adjustment in win11 and restore the normal brightness adjustment function of your computer.

Win11 brightness adjustment failure solution:

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

What should I do if the brightness adjustment in Win11 does not work? Solution to Win11 brightness adjustment failure

#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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