Install MS-UAA, as provided below 1. MS-UAA HERE ,(sp33867) 2. MS UAA (alternative to sp33867), here 3. MS UAA for XP SP3 , here Conexant High-Definition SmartAudio 221 Driver ( CQ50, CQ60, CQ70, G50, G60 and
G70 ), use Microsoft Update driver, or download it here Futher detail see sticky guide regarding XP downgrade, here