Nothing can hide the light that shines from within.

But when the light comes from your machine monitor, it could stop shining.

I am talking about the brightness slider that is not functioning correctly and restricting from adjusting the monitor brightness.

cant-adjust-brightness-on-windows-10

The situation gets worse when your eyes start hurting because of the high brightness.

So lets have a look at how to fix the issue.

Why Cant I Change the Screen Brightness on Windows 10?

select-device-manager

Sometimes, the screen brightness controller fails to adjust brightness for various reasons.

When the function keys of your laptop are stuck or on, you cannot change the screen brightness.

An outdated driver also restricts users from accessing this feature.

update-driver

Adjusting the brightness is simple, but the situation worsens when the brightness slider stops working.

Most laptop users need to adjust rig brightness frequently to save battery life.

However, desktop users can use the monitor brightness controls to change the brightness.

search-for-drivers

But when nothing works, you must tweak several scenes to make the brightness slider work again.

Besides, updating display drives and re-enabling the PnP monitor driver helps to patch up the issue.

The brightness slider missing is a common issue in Windows operating systems.

windows-mobility-center

Sometimes, Windows 11 users found thebrightness slider missingissues on their machines.

To sort out the brightness problem in Windows 10, go through the following methods.

Here are the methods to fix brightness not changing on Windows 10:

1.

select-settings

Updating the display driver can solve most of the issues.

The updating process is more straightforward with the equipment Manager.

Consider the subsequent instructions to update display adapter drivers.

brightness-and-color

Once the driver is updated, power cycle your gear and try changing the brightness.

Use Windows Mobility Center

Windows Mobility Center allows you to adjust brightness, along with sounds.

Press Windows + X keys and selectWindows Mobility Center.

enable-device

you’ve got the option to use theDisplay brightnessslider to adjust your rig brightness.

Use System parameters

you could use parameters to adjust brightness and block the automatic brightness level.

Go through the procedure below to use System parameters.

command-line

If the problem persists, you could re-switch on the PnP monitor driver to solve the problem.

Check out the easiest way toenable Windows Hello in Windows 10.

This driver can conflict with some driver or system updates.

It can help you by triggering the system to recheck the drivers.

hit the Start button and search forCMD.

SelectRun as administratorand enter the following command.

Heres a complete guide on how toenable all Cores in Windows 10.

Frequently Asked Questions

Why is my Fn keys brightness not working?

If a function key is already on or stuck, the Fn keys brightness will not work.

Ensure no button is stuck and check for driver updates.

How to adjust brightness in Windows 10?

Then use the Brightness slider to adjust brightness.

How to fix the laptop brightness that wont change on Windows 10?

So whenever you face the brightness slider not working issue, you must take action immediately.

This article has briefly covered all reasons and resolutions to adjust brightness effortlessly.

Just press Windows + A keys and use the brightness slider instantly.

Let me know which method you find helpful.