Unknown Device Under Device Manager After Doing A Win8 Pro Upgrade!

I have an HP Pavilion dv7-6b32us notebook computer. I just installed Windows 8 Pro. I looked under Device Manager & I have one Unknown Device now. I installed all of the drivers, so I don't know what it can be. How can I find out? I'm attaching some screen shots. Thanks for your help and time!
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That is the HP wireless button.
Download and install the HP wireless button driver .
Please report your results here in your thread.
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