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HP ProBook 440 G7 - Brightness cannot be controlled via keyboard (F3, F4)

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HP ProBook 440 G7
Microsoft Windows 10 (64-bit)

Good evening,
I got my new HP HP ProBook 440 G7 (3C084ES) today. As far as everything is fine, except that I can't adjust the screen brightness with the keyboard and the F3 and F4 keys. I can adjust the brightness under the settings in Windows 10, but it should also work with the F3 and F4 keys. I had to completely reinstall Windows 10 because the notbook only had FreeDOS. After that I installed all the necessary drivers and no problem is displayed in the device manager either.
It would be helpful if someone could help me.

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@Maxime93 

 

Please try

 

           http://ftp.hp.com/pub/softpaq/sp81501-82000/sp81790.exe

 

Regards.

BH
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@Banhien

 

the link cannot be opened because this error occurs: "Not Found
The requested URL /pub/softpaq/sp81501-82000/sp81790.exe was not found on this server. "

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It seems that a Microsoft update killed the feature for my ProBook 440 G7.  I had to go uninstall windows update KB4578968 to get my brightness keys to work again.  You can do this by doing the following: Open System Settings -> Check for Updates -> View Update History -> Uninstall Updates -> Double click the KB4578968 update to uninstall.  I also had issues with my display settings (F1) and microphone mute button (F8).  

 

Edit: It was also another MS update in combination.  The other update was KB4579311.  I uninstalled it first but didn't think it had an effect.  It did however. So you need to uninstall both KB4579311 and KB4578968 (and then find how we can get support to re-install them AND have our keys work)

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