To fix the audio on a MacBook Pro 2012 Go to product viewer dialog for this item.
No audio in Windows 10 | MacBook Pro (mid-2012) : r/bootcamp macbook pro 2012 audio driver windows 10 hot
Note: This will give you working sound, but the microphone input levels may be low. It solves the "hot" output issue perfectly. To fix the audio on a MacBook Pro
Open Device Manager and find the "High Definition Audio Controller" with a yellow warning icon. Download ThrottleStop 9
If you are in Legacy mode but have no sound, you need the specific Cirrus Logic CS4206B Download the Cirrus Logic CS4206B (AB 90) driver from a reputable source like Apple Support Downloads page for Boot Camp Support Software 5.0.5033. Extract the ZIP folder to your desktop. Right-click the Start button and select Device Manager System devices
Look for "High Definition Audio Controller" or a device with a yellow exclamation mark under Sound, video and game controllers. Right-click it -> Update driver. Select Browse my computer for drivers. Point it to the