Fix Can’t Adjust Brightness after Upgrading to Windows 8.1/10
Fix Can’t Adjust Brightness after Upgrading to Windows 8.1/10 Sometimes an older driver comes in handy After upgrading an older Lenovo laptop to Windows 10 recently, I ran into a very annoying problem. For whatever reason, the ability to adjust the brightness stopped working. Pressing the brightness keys on the keyboard would show that the brightness level was going up or down, but nothing actually changed on the screen! It was the weirdest thing I had ever seen....