What is the Realtek AC97 Audio Windows Driver?

The Realtek AC97 Audio driver is software that enables the audio hardware on your computer, specifically an AC97 audio codec (Audio Codec '97), to function properly with the Windows operating system. AC97 is an older audio standard that was widely used in motherboards and sound cards, providing support for basic audio input and output, including features like stereo sound, microphone input, and headphone output.

Realtek, a popular manufacturer of audio chips, produces AC97 audio codecs that are used in many consumer PCs and motherboards. The Realtek AC97 Audio driver allows Windows to communicate with the audio hardware, ensuring that you can play sound through speakers, use headphones, and interact with other audio-related devices such as microphones or line-in devices.