Windows Vista:
To update the sound card driver, follow these steps:
1 Click "Start", click "Control Panel", then double-click "System."
(2) Click "Device Manager."
If you are prompted for an administrator password or confirmation, type the password or click "Continue."
3 Expand the "Sound, video and game controllers."
Double-click the sound card, and then click the "Driver" tab.
5 Click "Update Driver Software."
6 accordance with the "Update Driver Software Wizard" update the sound card drivers.
In Device manager right-click on unkown device.Select update driver.Using XP's feature "Can windows connect to windows update to search for software" just this time, immediately found the multimedia driver and installed the drivers.Appears it's a SIS 7012 audio driver
make sure your using the latest version and update your audio driver on your computer
when your audio doesnt work, it usually indicates an issue with the audio card. you could have a corrupt or outdated driver. usually, windows update catches the issue, but if it doesn't, right click on my computer and click manage. from there, click on device manager, and then look for the sounds category. if you see any kind of "!" or "X" marks, right click, and hit update driver software
download audio driver
The most likely cause for sound issues on a computer is a problem with the driver. If you update the driver software for your sound device your problem might go away.
The AC97 audio driver is not for sale it is a computer program that allows the audio hardware on the device to function. The driver can be downloaded from the Realtek website.
I would look up the manufacturer's website for the audio driver you currently have to see if there is a update or patch you could download or purchase. This often saves you money and can save you from having to install brand new drivers.
what does realtek audio do
how can i install dell optiplex gx270 audio driver
RealTek Audio Druver
Audio card is the physical hardware that you plug your speakers in to. Audio driver is software, that commands the hardware. You need both to hear sound.
Rollback Driver feature