Touchpad and Brightness control(display driver) not working properly

[SnoopAkon]

Hello friends,

 

I installed official touchpad drivers from following the official link:

https://support.hp.com/in-en/drivers/selfservice/hp-probook-440-g6-notebook-pc/23200928

 

Even after installing driver touchpad doesn't behave as it should. The driver doesn't do anything.

Also, I have installed an Intel driver for the same but  I can't control brightness using functional keys.

 

Please anyone help me soon possible.