I used an external micophone and now the internal micophones can not be found or re-activated. Envy I7 17" win 8.1. When the new headphones installed software I saw a flash that it was uninstalling the internal micophone array. I was not given a choice and now I can't get the internal microphones back on reguardless of what I try...
I have a newer HP Envy Notebook running Win 8.1 and is a I7 with toch screen. I have not tried any restore options but I have already loaded a lot of software, Outlook, Adobe CS6 etc.