No sound coming from computer

Earlier this week, windows xp just reinstalled itself. I had no idea why, but I was unable to run a lot of stuff due to having to update drivers. I'm not sure what to do about the sound drivers though.

I'm running an eMachines computer, xp 32-bit. In dxdiag, in the sound tab, it says that no sound card was found. Any ideas?
 
I failed to mention this in your other, similar post but what do you mean exactly when you say XP reinstalled itself?

As for your sound drivers, unless I'm misunderstanding the problem go to the eMachines website and see if you can locate the sound drivers you need.

I can't be more specific because you didn't provide the model number of your PC or what kind of sound card you might be running.
 
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