How to solve the problem of brightness adjuster disappearing in win11

Recently, many Windows 11 users reported that they found that the brightness adjustment function was missing after upgrading the system. They were troubled by the inability to adjust the screen brightness. In response to this problem, PHP editor Youzi has brought you a solution, hoping to help users who encounter this problem. Let’s take a look at how to solve the problem of brightness adjustment missing in Windows 11!

Solution to Win11 brightness adjustment missing

Method 1

1. Try restarting the computer and reconnecting A power cord should be fine.

Method 2

1. If restarting the computer doesn’t work, you can try modifying the registry.

2. First, right-click the Start menu to open Run

3. Then enter regedit and press Enter to run.

4. Enter the computer HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4d36e968-e325-11ce-bfc1-08002be10318}.

5. Double-click to open KMD_EnableBrightnessInterface2 in the 0000 and 0001 folders.

6. Change their numerical data to 0, click OK, and then restart the computer to retrieve the brightness adjustment button.

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