How to fix adjust screen brightness issue in Windows 8/8.1
If you are installing Windows 8 in older systems that came before the release of Windows, you will face this issue. Problem: When you install Windows 8.1 and try to increase or decrease brightness, nothing happens. Cause: The display driver is not installed. The default “Microsoft Display Driver” is installed by default. Solution: You need to find the driver for your motherboard/processor. I found...