My acer 5220 has no sound driver

Acer 5220 has four NoteBook models - Aspire, Extensa, Ferrari, and the Travel Mate.

Assumming one of these is your model, below is the direct link to ACER Support - Downloads...

http://gd.panam.acer.com/home/


Suggestion:
Create a folder on the C: drive named Drivers. Under the C:\Drivers\ folder create a sub-folder named Sound. When you download the sound driver - download it into C:\DRIVERS\SOUND.

* * You could follow the above process for all your driver downloads, such as Video. Once you have all the drivers downloaded within the C:\Drivers folder - Burn them all to CD or USB key for safe storage.

Okay once the download has completed, you will need to browse to the folder and unzip the driver download file. Then run the install/setup routine.

Hope this helps....

God Bless.......