Hello! I have Asus M50Sv with Realtek HD Audio and Vista 32bit SP2. Once a day after rebooting the sound dissapeared because of Windows Audio service not started. In events log I see Windows Audio service starting error with code 13 (OxD). If I try to start this service manually - it also fails to stard whth error code 13. I read all found threads about Audio service problem whth Vista and didn't found a solution. All services Windows Audio service depends from are running properly. I have reinstalled audio device using lates version of Realtek audio drivers. I have updated all other drivers and installed latest Windows updates. I don't have rollback points. Can someone give me more ideas how I could be fixed? (reinstalling windows is not an option so far) What it means then service fails to start with code 13? Please help! Thanks in advance!