100 s-11IBY computer laptop (ideapad) - cannot adjust the brightness of the screen - windows 10

Hello my f11 and f12 keys is no longer adjust my brightness. The gauge up and down, but does not change the brightness. I tried to update the graphics card in Device Manager, but he says that it is up-to-date. Same thing with 'Generic PNP Monitor' said that it is up-to-date. I wiped the computer clean and 'reset' and reinstalled windows and it still does not allow me to adjust the brightness of the screen

I'm not incredibly intuitive with computers, but I followed the instructions as much as I could find during my research online with nothing doesn't.

Initially, the problem occurred when I used out of ignorance a program to install the drivers it says have been exceeded. After that, my audio stop working and my keyboard stop working entirely. After resetting the computer and windows resettled, the only question that remains is the brightness of the screen not being able to be adjusted.

This drives me crazy, can anyone help me? I would be very happy! and please let me know if you need more information regarding my laptop. Thank you!!

I thought about it. My drivers intel had to be installed since I reinstalled windows. I used the utility of intel and updated driver to update the graphics card update

Tags: Lenovo Notebooks

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