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I'm using HP Probook 440 G4 for last 3 months. And I couldn't increase/decrease brightness using Fn+F5/F6. Every time I tried, it said something like this.
[Window name] HP Hotkey UWP Service
Error: HP Software Framework is not installed in the system
Please download and install from the link -
ftp://ftp.hp.com/pub/caps-sofpaq/cmit/softpaq/CASLSetup.exe
Note: Restart system after installation
The link suggested here is not valid anymore. What can I do?
Get the HP Driver Update Application, run it and update all Drivers. It appears your Hotkey Driver is out of date or had some other problem. Updating all Drivers should fix this – John – 2020-02-14T02:33:41.587
Yap, I solved it and posted this question to share that as I got some pain for this. Thanks for your idea. May it also helps to solve the problem. – Md. Nowshad Hasan – 2020-02-14T02:44:07.573