How do I deal with multimedia audio hardware

[VANSjb7]

i need help my desktop worked the sound perfectly until today i saw a yellow mark next to multimedia audio controller.how can i fix it.i dont have sound on my computer.PLZ HELP

 

[LookinAround]

Best first thing to try
1) Look in Add/Remove Programs to see if audio driver is listed and uninstall it from there
2) Then go to the support site for your computer system or motherboard provider (e.g. Dell, HP, Foxconn) and download the latest audio driver for your computer model. Reinstall it