
WINDOWS 11 BRIGHTNESS SLIDER MISSING DRIVERS
Device drivers should always be updated on time. In addition to a malfunctioning driver, the aforementioned problem can also be caused by an outdated driver. If the GPE policy is causing the problem under consideration, following the above steps should solve it ASAP.

Locate and double-click Disable the display control panel.User Configuration > Administrative Templates > Control Panel > Display Once you are in the Group Policy Editor, go to the location mentioned below.Inside the text field of the dialog, type gpedit.msc and hit Enters.keys on the keyboard to open the Run dialog. If you are a home user, move down to the next method below. However, this Group Policy Editor is not available on Windows 11 Home edition. You can check this setting by accessing the Group Policy Editor as shown below. You may also not be able to see the brightness slider if a policy called Disable Display Control Panel is enabled in the Group Policy Editor. Users can modify the operations of their operating systems by modifying the relevant policies. Information about Windows programs and operations is stored in this utility as policies. Group Policy is a feature of Windows that controls the working environment of your operating system. Hopefully the issue will be resolved upon restart. Finally, close the Registry Editor and restart your computer.If this scenario is applicable, then uninstalling the app can do the trick for you. If you have installed TeamViewer on your operating system, there is a good chance that it may be the cause of the problem at hand. Now that we know the possible causes, let’s have a look at several effective troubleshooting steps that will help you fix the problem in no time.

Some registry keys or related GPE policies may be enabled.
WINDOWS 11 BRIGHTNESS SLIDER MISSING DRIVER
Your display driver might be outdated or broken from Device Manager, making some display features unavailable.This happens when TeamViewer deals with the drivers for your screen, causing the brightness slider to disappear. In most cases, the TeamViewer app is the reason behind the missing brightness slider issue in Windows 11.You may encounter the problem under consideration for one of the following reasons: If you are unable to locate the brightness slider in the new Windows, we have compiled a list of 6 solutions that will help you get it back in no time. However, sometimes Windows 11 brightness options disappear. When the lights are dim, switching from blue to yellow light is a good option. When you are in bright sunlight, you want to increase it to see the screen clearly. Screen brightness is likely to be changed regularly.
