I solved it! Just need to update again the display driver. 1. Search "device manager" 2. Click display adapter 3. Right-click on your graphic and click update. 4. Go to windows update in case it didn't automatically update.    Hope it's helpful.
Hi, I just updated my windows 10 and suddenly the brightness button didn't work. It's so bright, my eyes hurt. Does anyone know how to solve this? I tried searching at the setting, can't find it too.
Brightness button not working, Inspiron 15 7000