2 How To / Technology December 20, 2017 by Anup kumar, Editor · Published December 20, 2017 · Last modified January 24, 2024 Solution Brightness Button Not Working in Windows HP If you are still facing most common problems of Laptop or PC that is your hp brightness not working in Windows 8, 8.1, 10, 11 then here we will guide you how to re-solve...