Sound on Windows 7 Ultimate 32-bit not working?

ac97 said:

Since yesterday, I logged onto youtube and noticed my sound was not working at all. I have tried disabling my sound and enabling it but it doesn't resolve the problem. I also tried trouble shooting the sound and it told me to plug in the speaker but I have internal speakers, it also said "The peripheral does not appear to be plugged in. Check the connection. Proceed to next step to finish."

I have no idea on how to resolve my sound issues. This has never happened before.

Did you try external speakers ????

Maybe the internal one's are broken

ac97 said:

I don't have any external speakers anymore. Is there any possible way that I accidently turned them off or disabled any speakers

are you sure your audio isn't muted ?
als check device manager if your audio driver is enabled.
and yeah maybe try updating the driver it could help (which audio card do you have ?)

ac97 said:

It says it is enabled under 'High Definition Audio device' and then when I double click on that a pop up comes up and says:
"MMC has detected an error in snap-in. It is recommended that you shut down and restart MMC" What does that me :\

Try rebooting your PC ?! maybe then your audio works again