Disable Brightness Slider in Windows 11 Quick Settings

How to Disable the Brightness Slider in Windows 11 Quick Settings

Windows 11’s Quick Settings panel includes a brightness control that, for certain use cases like kiosks or locked-down workstations, you may want to remove. Below are two safe methods—no third-party installers or risky hacks—to hide or disable that slider.

Method 1: Group Policy Editor (Pro & Enterprise)

Press Win + R, type gpedit.msc, and press Enter.
Navigate to:
User Configuration → Administrative Templates → Start Menu and Taskbar → Quick Settings
Double-click Remove display brightness control from the quick settings, set to Enabled, then click Apply and OK.
Open an elevated PowerShell or Command Prompt and run:
gpupdate /force
Sign out and back in (or reboot) to see the brightness slider removed.

Method 2: PowerShell + Task Scheduler (All Editions)

Step 1: Registry Script

# Disable Brightness Slider in Quick Settings
$key  = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Controls Folder\Quick Actions\Tasks\DeviceBrightness"
$name = "State"
If (!(Test-Path $key)) { New-Item -Path $key -Force | Out-Null }
New-ItemProperty -Path $key -Name $name -Value 0 -PropertyType DWORD -Force | Out-Null

Step 2: Automate at Logon

Save the script as DisableBrightness.ps1 in C:\Scripts\.
Open Task Scheduler → Create Task.
Under General, check Run with highest privileges.
Under Triggers, add At log on.
Under Actions, choose Start a program;
Program: powershell.exe
Arguments: -ExecutionPolicy Bypass -File "C:\Scripts\DisableBrightness.ps1"
Save and test by signing out/in.

Verification & Troubleshooting

Issue	Fix
Slider still appears	Confirm script registry path is correct and GPO applied; reboot if needed.
GPO setting not visible	Install latest Windows 11 ADMX templates from Microsoft.
Script blocked	Ensure `-ExecutionPolicy Bypass` is in Task Scheduler arguments.

Conclusion

Use Group Policy for Pro/Enterprise installs or a simple PowerShell + Task Scheduler combo on any edition to permanently hide the brightness slider. Both methods are safe, reversible, and require no third-party tools.

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