my speaker sound is not working.when i go to check on setting of sound,it displys no audio is installed. How to recover my system.
if it a pre built dell or hp google the model number and go to the vendor web page for the audio drivers.
most mb use realtek hd audio drivers or ac97 drivers. http://www.realtek.com.tw/
if it not a realteck chipset is could be a creative labs chipset.