No output device and no sound card in Device Manager

Hello I installed today on my Acer 7520 G laptop Windows7, I was pretty happy with it much but I have 1 problem.

The arrival of the installation I had sound, but after windows updated itself the next time I got this done installed peripheral No. output message, I tried to reinstall the realtek drivers but no use, things to make it even worse, I can't find my sound card device in DEVICE MANAGER, it is as the sound card missing I had this problem on my Vista as well, but it worked after doing the system restore. Now even System Restore does not work, and I doubt that it is a hardware failure.

I tried refreshing and looking for changes on the hardware in the Device Manager, no use. S

Kind regards.

Hello Fafarona,

Can you tell what update may have caused the problem with your sound?
Did you try and update your sound card drivers again after updates?

You can try the following link:

It has an automatic FIXIT who could help restore your sound. It does help more sound issues.

Answer please come back and let us know.


Microsoft Answers Support Engineer
Visit our Microsoft answers feedback Forum and let us know what you think

Tags: Windows

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