Brightnes from keyboard in win10

Hi i hawe installed fresh windows10 ho know how is driver to install for this keyboard in GemiBook Pro ?? or if its some software , i hawe ubuntu installed in second partition and in ubuntu brightnes work well, only in windows i cant change with F6 and F7

Probably you need to install some ACPI or keyboard driver.
Ask for them at service@chuwi.com

Chuwi seler told me dont instal other OS use orginal OS i cant use this windows translated its never all translated and at first boot compiuter goes in tilt i waited 40 min and i rebooted him but afther reboot windows ask me password and i dont know how is the password i not created password and account . At this i dont thinked more and i instaled fresh windows 10 downloaded from microsoft work all only this brightnes dont work i foundet driver for micro SD card reader work its only problem push card inside , its not critical but litle mistake in design.