I downloaded the latest update for Realtek HD Audio Drivers from my computer manufacturer's website and now Windows says there is no Audio Output Device Installed. I've looked at device managers and tried to install and reinstall but with no success. The roll back drivers button is greyed out. I've also tried a system restore, that didn't work either. Not sure what to do now... any help would be greatly appreciated.
Comp Model: Sony VGN-NR110E
OS: Windows 7
Comp Model: Sony VGN-NR110E
OS: Windows 7