I installed them, and my computer was set. CMI8788 driver for Windows 7, Vista y XP for Free. A long while ago I purchased a soundcard because my motherboard's default sound card stopped working. If you were unable to install your sound card, download thre driver for CMI8788 that we provide. A short while ago, I was forced to reinstalled Windows again, and when I tried to listen to some music videos, I noticed the sound was not working. It doesn't matter your operative system, here we have all of the versions of the driver CMI8788. Doing a little more research, I found out that I didn't have the drivers installed. When I opened the box to install it, there was a small CD, where it contained the drivers of the product.