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HP Recommended
HP ZBook 15 G2 Mobile Workstation
Microsoft Windows 10 (64-bit)

After shutting down my ZBook the fan starts running in fast mode and the two  buttons on the top right (WLAN and Loudspeaker) light up in yellow. I have already updated all driver without getting a solution. This behavior occurred out of the blue. Can it be a hardware malfunction or what else?

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