Need drivers my sound does not work.

Any changes that either happened or that you perhaps made to your computer around the time that the problem started; particularly any software or hardware that you installed or setup.

What OS do you have

Are there any yellow marks in device mgr?

-right click on My computer on desktop and click properties and then go to hardware tab and device mgr.

-if yellow mark next to sound device, right click o nit and choose uninstall and say OK

-close all open windows and then restart PC

-on restart, windows will try to install drivers for the sound card

Check sound when back in windows

As much info to try and pinpoint why sound does not work