I had a problem with my computer recently. I took it to an IT service to have it repaired. They did it fast. At first, everything was fine. But when I tried to make a Skype call, I couldn't hear anything. The person on the other side couldn't hear me too. Then, I figured out that a sound driver was missing. I didn't know what to do or where to find the acer driver I needed. Thanks to my sister who knows something more than me about technology, I was informed about Driver Detective and I downloaded it right away. After that, the application located the driver I needed.