cannot change my new laptop brightness

[mr_takashie]

please i bought a new hp probook 450 G5 last week and i have windows 10 64-bit ...and i can't adjust my brightness and i already update el drivers of graphics and monitor up to date ...what is the solution ! is it a hardware issue or it very rare to be that !!

 

[Prostar Computer]

Is the correct Intel HD Graphics driver installed? Might try reinstalling the one from HP's site first, then try updating from Intel's site.