Samsung Ativ Book 2
Windows 10 Pro
Intel Core I5 3230M CPU@ 2.60 GHz
8 GB / 1TB
64 BITS
NVIDEA GFORCE 710M

I was looking in the M $ site, and saw that to solve the brightness of the stop needed to uninstall the display driver and then install again, but still does not work, nor tighten FN + F2 or F3, so...