Uninstall sound drivers. Then, check Windows update to see if there is a Microsoft driver. If Yes, then download and install.
If No MS driver:
Try older audio driver from Intel website OR from the CD that came with motherboard.
see Intel Windows driver here:
If this does not work, try updating BIOS to latest version and reinstalling driver.
thanks man , sound is working now
i want to Download sound driver but i don't know from where i can get it. pls help me thnx.