až ako maš na 100% spravne ovladače tak na wiste8 treba vyhodit KB 2962407 robi to neplechu aj u wmpl
http://pc.poradna.net/q/view/1262469-blbne-zvuk
http://answers.microsoft.com/en-us/windows/forum/w indows_8-windows_update/windows-update-kb-2962407- causes-problem-in/3c0fa85a-b84c-45a7-bc9d-62b30ef0 224b