How to Fix Brightness Not Working or Slider Missing in Windows 10

Any brightness issue occurring on your computer may be associated with your computer’s display driver or incorrect settings. If your Windows cannot adjust the brightness of your computer or laptop display, then restarting the PC or updating the Windows should be your first course of action.

If the issue still persists, then you have to try some other workarounds. In this article, we will teach you how you can fix the issue Brightness Not Working or Slider Missing in Windows 10 operating system.

How to Fix Brightness Not Working or Slider Missing in Windows 10

In this article we will show you five straightforward methods to fix the issue Brightness Not Working or Slider Missing in Windows 10 operating system:

· Updating Display Adapter drivers

· Turn Adaptive Brightness

· Turn on PnP Monitor

· Updating Registry

1) Updating Display Adapter drivers

Here are the steps on how to update Display Adapter drivers:

1. Right-tap on Start and then tap on “Device manager.”

2. Enable “Display Adapter.”

3. Right-tap on the display adapter menu and tap on “Update Driver software.”

4. Choose the option to search the update software driver automatically.

5. Now restart your PC when the Updating finished.

Alternatively, you can also try installing latest drivers on your computer from your device manufacturer’s official website.

Here are the steps on how to update display driver from Manufacture official website:

1. Right-tap on Start icon.

2. Choose “Device manager.”

3. Find “Display driver” and then hit on the driver to enable the list.

4. Right-tap on the specific display driver.

5. Choose Uninstall.

6. Visit Driver sub-section and software, or you can also find drivers through Google to get a direct link on your device manufacturer’s official website.

7. When you are prompt to the website, search the download.

8. Now you need to install and missing the appropriate driver from your computer or laptop that is the reason behind the brightness adjustment issue.

2) Turn Adaptive Brightness

Here are the steps on how to turn adaptive brightness:

1. Right-tap on Start icon.

2. Choose “Control Panel.”

3. Choose Power Options.

4. Tao on the “Change Plan Settings” link that appears near your new power plane.

5. Tap on “Change advance power settings.”

6. In the next window, tap on “Display” to launch the listing in it.

7. Find and tap each of the given as Dimmed display and display brightness and turn adaptive brightness.

8. Change every of these to your desire settings.

9. Tap Apply.

10. Hit “OK.”

11. After the above process, you need to check the issue is resolved.

3) Turn on PnP Monitor

Here are the steps on how to turn on PnP Monitor:

1. Right-tap on Start icon.

2. Choose “Device Manager.”

3. Tap on “Monitor.”

4. Right-tap on “General PnP monitor to view it is enabled or not.

5. If you have not enabled, tap on “Enable Device” or if you allow then disable it.

6. Tap on the “Action” option that appears on the upper menu in Device Manager.

7. Choose “Scan for Hardware Changes.”

8. Run the Scan.

4) Updating Registry

If you cannot to adjust display brightness, then you need to try updating your registry.Hereare the steps on how to update registry:

1. Right-tap on Start icon.

2. Choose “Run.”

3. Visit “HKEY_LOCAL_MACHINE.”

4. Tap System

5. Tap ControlSet001

6. Tap Control

7. Choose “Class{4d36e968-e325–11ce-bfc1–08002be10318}000” and set FeatureTestControl” DWORD’s data value to “0000ffff.”

8. After the above process, your registry updating finished and fix the issue “Brightness Not Working or Slider Missing” in Windows 10 Operating system. Here you need to check the issue is resolved.

Devin Smith is a creative person who has been writing blogs and articles about cybersecurity. He writes about the latest updates regarding mcafee.com/activate and how it can improve the work experience of users. His articles have been published in many popular e-magazines, blogs, and websites.