Windows 10: How to fix laptop brightness

Hello, i have a school laptop and every time i go to turn the brightness down it makes my screen go black. Im not sure how to fix this as in settings there is no option for brightness.

:)

 

Unable to Change Screen Brightness of Laptop


So I'm not sure how long this has been happening but for some reason, I can't change the brightness on my laptop screen. I have linked a picture and as you can see, my brightness says 0% and that I can't change it, however my actual brightness is at 100%. I have looked around everywhere and the only responses I have found don't work for me. Here's a list of everything I have tried:
- Reinstalling Display Drivers
- Rolling Back Display Drivers
- Reset Settings on UWT4
- Power and Battery Settings
(UWT4 or Ultimate Windows Tweaker 4 is a customizer for Windows 10 and I thought that might be the problem but it wasn't)

If anyone has any suggestions on how to fix this, it's greatly appreciated! Thanks! -

 

Brightness Control not working in Windows 10

Hi Ella,

To adjust the brightness, see the steps below:

• Go back to Power Options, and tick on the High performance.
• See if you can adjust the brightness.

If this not work, we highly suggest that you create an Administrator account, and re-do the steps above.

Let us know how it goes.

 

Brightness is fixed/unadjustable.

If it was working previously, I'd bet it stopped due to a mirror driver being installed. Mirror drivers are what allow remote meeting software like GoToMeeting, WebEx, and Team Viewer to copy the screen.

Here's the steps I would suggest:

• Right-click the Start button, choose Device Manager
• Go to the Monitor section (not display adapter) and remove everything inside (right-click and uninstall)
• Click the "Scan for hardware" on the toolbar (has a magnifying glass icon on it)
• Try adjusting brightness again

Please let me know how it goes.