My desktop has no sound and audio ???? What do you suggest is wrong, the lines to the computer tower

Operating with Windows 7, Computer is an Acer model. I have no sound or audio, all lines are hooked up in the back of the computer correctly. What would you suggest is wrong and what to do to get the sound back on my computer ?????
                           Thank You   Cindy {Personal Information Removed}

Typically desktop PC's do not have speakers unless they are external.  So unless there were speakers in the box, then you have correct assumption.  I had another with the same question and unless the monitor has speakers, then external speakers are required.
On the other question, it would seem that installing Windows 7 may not void the warrenty, as HP does not support the OS, other than providing it.
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Please click "Accept As Solution" if my help has solved your problem. ----------}
This is a user supported forum. I am a volunteer and I do not work for HP.

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