The High Definition Audio driver fails to start with code (10). HP techs have been unable to correct this problem. I am attaching screen shots of problem.
https://www.dropbox.com/s/zvsoy47rtfn1jqr/Screenshot%202014-01-22%2011.14.13.png
https://www.dropbox.com/s/jhmcxiariyvuhjx/Screenshot%202014-01-22%2011.14.33.png