I just updated my daughters HP laptop win 10 last night and now the sound card drivers are all gone. I have opened the devmgmt.msc folder and went to the sound branch and nothing. ..there is no Realtek listed. I went to Realtek and downloaded the driver and started the setup process. It says it completed and I have rebooted the computer and it still is t there and no sound. I am beyond frustrated. I even to a minor restore and still nothing. I have went through the above process more than a dozen times and still no driver installed.