You will see your boot options. .
Remove the bottom aluminum case screws, lift the panel, and use a can of compressed air to blow out the thick dust accumulated in the heatsink fins and fan blades. Hold the fan blades still while spraying to avoid damaging the bearings.
If you see a red light inside the 3.5mm jack, the Mac thinks an optical cable is plugged in.
The 2012 MacBook Pro uses a specific Cirrus Logic CS4206B audio controller. Windows 10 frequently tries to install a generic High Definition Audio driver that doesn't actually communicate with the Mac's speakers. macbook pro 2012 audio driver windows 10 hot
: Windows installations often apply a generic Microsoft driver to the audio controller. This results in a yellow exclamation mark in Device Manager (Error Code 10 or 43), meaning the system cannot start the device.
chip. Standard Boot Camp installers often miss this or fail to activate it in EFI mode. 1. Download the Correct Driver Navigate to a reputable driver repository like DriverScape to find the Cirrus Logic CS4206B (AB 82) Download the
Transfer the downloaded .exe file to your Windows 10 partition using a USB drive. Do not run the setup.exe installer. Instead, follow these steps: You will see your boot options
Right-click the Windows and select Device Manager .
This is the most critical step. The solution depends entirely on how Windows 10 was installed. You can check your current configuration by running msinfo32 in Windows and locating the "BIOS Mode" entry.
The infamous "No Audio Device Installed" error or red light in the headphone jack. Hold the fan blades still while spraying to
Look for (Note: This is separate from the "Sound, video and game controllers" section).
Sometimes the Mac thinks an optical cable is plugged in (look for a red light in the headphone jack), which mutes the internal speakers. Step 1: Download the Correct Driver Package