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RubyMn Student
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Function keys for brightness adjustment not working

Example: Pavilion 15 Notebook
Microsoft Windows 8.1 (64-bit)

The function keys for brightness adjustment are not working.

HP Support Agent
HP Support Agent
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Function keys for brightness adjustment not working



Welcome to HP Forums, this is a great place to get support, find answers and tips, Thank you for posting your query, I'll be more than glad to help you out :) As I understand the Fn keys to increase or decrease the brightness and muting the computer isn't working and you need a way to fix this issue,

Don't worry as I have a few steps that should help fix this issue

And here's the step by step guide for you:

1  Click the Start button, then click Run .

 2.In the Run window, next to Open , type MSCONFIG .

 3.Press the ENTER key.

4.In the System Configuration Utility window, click the Startup tab.

5.On the Startup tab, under Startup Item , ensure that there is a check in the HKserv checkbox.


NOTE: If HKserv is missing, reinstall the Hot-Key Utility application by clicking here


For windows 10 drivers: Click here


(ignore the ads, 3rd party link has been sent to ensure your issue is fixed, I'm going beyond my way to help you and if you would like to give me virtual high five, Click on the purple thumbs up :)


Let me know how that pans out, I hope you have a good day ahead, And Feel free to ask your queries as this forum has some of the best people in the world available and ready to help.


If this helps, please mark this as Accepted Solution as it will help several others with the same issue to get it resolved without hassles.To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help.

I am an HP Employee

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