1 Answer

Try this: 

Go to Start->Settings->Control Panel->Adminstrative Tools->Services 

Then locate in the list of services "Windows Audio". Open this service 

If this service is showing with a Startup type set to Disabled then Select "Automatic" from the drop down list then hit apply. Then click the "Start" button. 

If this service is showing with a Startup type set to Manual then Select "Automatic" from the drop down list then hit apply. Then click the "Start" button. 

Next Go to Start->Settings->Control Panel->Sounds and Audio Devices then select the Volume Tab then put a tick in the box marked "Place Volume Icon in the Task Bar" then click apply. 

With a bit of luck and following wind you should now have your sound restored.

http://en.kioskea.net/forum/affich-5457-no-audio-no-sound-device-and-troubleshoot-is