Audio Stopped Working on Computer

[horizons]

Hello, my audio was working fine on my computer yesterday.

However, today the audio doesn't work anymore.

I have no muted the sound or unplugged any speakers.

Can someone kindly give me some advice on how to troubleshoot this?

[SHARKY7SHARKY]

Check this out.


                    http://windows.microsoft.com/en-US/windows-vista/Tips-for-fixing-common-sound-problems