When Windows lists a "Multimedia Audio Controller" under "Other Devices" in the Device Manager, it means the system knows sound hardware is present but doesn't have the software (driver) to talk to it. This typically results in your PC being completely mute.
Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters and run the Playing Audio troubleshooter. Windows will attempt to find and install the driver automatically. multimedia audio controller
A multimedia audio controller, also known as a sound controller or audio interface, is a hardware component responsible for managing and processing audio signals in a computer system. Its primary function is to control and facilitate the flow of audio data between various sources, such as CD players, DVD players, and audio interfaces, and output devices, like speakers, headphones, or external audio equipment. When Windows lists a "Multimedia Audio Controller" under
While the term often appears in Windows Device Manager, it broadly refers to the circuitry on the motherboard or a dedicated sound card that processes digital audio data and converts it into the analog sound you hear. Windows will attempt to find and install the