In this article, we will discuss different solutions to solve this error.
1. Enable a Device in Device Manager
The brightness slider might disappear if the display device is turned off in Device Manager. Turning it back on lets Windows control display settings again and restores the slider.
2. Update Your Graphics Card Driver
Outdated graphics drivers can break the link between Windows and the display, making the brightness slider disappear. Updating the graphics driver fixes this, letting Windows manage display settings and bring back the brightness slider.
3. Return the Brightness Setting to Quick Actions
Adding the brightness control back to Quick Actions lets you easily find it in the Action Center. This often fixes problems where the slider is hidden because of small interface errors or display driver settings. It ensures easy access without digging into system settings, making it simple to adjust brightness.
4. Update Windows to the Latest Version
Updating Windows makes sure it works well with new drivers and features, which can fix missing brightness controls. These updates often include solutions for display problems and improve system settings, helping to fix software bugs or conflicts. Note: If you have experienced this issue after updating your BIOS or making changes to the BIOS, it is recommended to reset your BIOS to factory defaults.
