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‎05-16-2017 01:43 AM

HP Recommended
Product: probook 4540s notebook pc
Operating System: Microsoft Windows 10 (64-bit)

Hi this is shahrukh,

i have problem regarding my function keys, brightness key, sound key, wireless button key they all are not working. i have also update the drivers but they dont work too.

kindly help me with this.

Thanks! 

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