If you are seeing a red "X" over your volume icon or your laptop feels like a hot plate, here is the definitive guide to getting your audio drivers working and your temperatures under control. Part 1: Fixing the MacBook Pro 2012 Audio Driver
If you are stuck on a UEFI installation and don't want to reinstall, tools like the Open Core Legacy Patcher can often "spoof" the necessary hardware hooks to get audio working on older Macs running modern Windows versions. Part 2: Managing Windows 10 Heat ("Hot" Issue) macbook pro 2012 audio driver windows 10 hot
Right-click it, select , then Browse my computer for drivers . If you are seeing a red "X" over