Can't adjust my brightness level on Lenovo ideapad 110-15IBR

I recently purchased a new system, and it came with no OS pre-installed so I installed windows 8 O.S, but found out i couldn't adjust the brightness level, i tried everything, updating drivers, disabling etc, even a lenovo power managent app, nothing worked, so i reinstalled a new OS. Windows 10, still can't adjust my brightness level. Please help, im out of options, and the display is really doing a number on my battery performance, even in powersaving mode.