I have searched all over the net for weeks now and no solution. I have talked to HP support which only gets lame answers, although they are very professional about it. LOL. I was sent a new Ralink card and of course, no difference. One rep suggested I send the laptop in to them. I refused. An. other told me to roll back to Win 7 so he could verify that Win 8 is the problem. I laughed and told him, "you roll back your laptop." I had one rep agree with me that the problem is BIOS. He said he would move the ticket up to a higher level. It seems like HP reps have no knowledge of this problem and are unaware of the hundreds of posts regarding this issue.
After trying every solution I have found, still no wireless button. I am running off hard wired ethernet and can plug in my iPhone in USB and hot spot. But this is a real work around that HP needs to fix.
I am almost certain it is BIOS. The other drivers seem to function for the wireless card and button, but the button is not functioning in the manner of its design.
Good luck folks and Happy New Year. Maybe we will have this solved soon, HP...are you listening?