告别无声世界，让经典机型在Windows 10下完美发声
这并非个别现象——大量A1278用户在各大技术论坛反映，安装Windows 10后声卡驱动无法正常工作，系统托盘中的喇叭图标上赫然打着一个红叉。设备管理器中，音频控制器显示着令人绝望的黄色感叹号和“代码10”错误。即便从Apple官方下载Boot Camp驱动，问题依然悬而未决。
Go to Control Panel > Sound, and change the default output device to see if the speakers activate.
Method 1: The Recommended Official Fix (Boot Camp Assistant Layout)
How to Install High-Quality Audio Drivers for MacBook Pro A1278 on Windows 10 Running Windows 10 on a classic MacBook Pro A1278 apple macbook pro a1278 audio driver windows 10 high quality
If you installed Windows 10 via (common when bypassing Boot Camp with a custom USB installer), your audio hardware might be entirely missing from the device tree.
Apple Boot Camp Support Software 5.1.5640 or version 5.1.5722.
The most reliable way to get high-quality audio is to reinstall Windows 10 using Legacy BIOS (MBR) mode instead of UEFI. Check your current mode , and look at If it says UEFI
Right-click the in the taskbar tray and select Sounds . Go to the Playback tab. The most reliable way to get high-quality audio
The physical speakers inside the MacBook Pro A1278 chassis are capable of decent range, but Apple's Windows drivers lack the proprietary acoustic DSP tuning built into macOS.
This is a driver-level problem. First, check your installation mode by opening msinfo32 (press Windows+R, type msinfo32 , and press Enter). Under "BIOS Mode", if it says , your installation is the root cause. In this case, the only reliable fix is to perform a clean reinstallation of Windows in Legacy BIOS mode . If your BIOS mode is already "Legacy", then proceed to reinstall the driver manually using Method 2 mentioned above.
Once the driver is active, you can enhance the output quality using these methods:
Download Boot Camp Support Software 5.1.5769 or 5.1.5621 from Apple’s official support site. The physical speakers inside the MacBook Pro A1278
The most reliable way to get high-quality audio is by extracting the original hardware drivers from Apple's Boot Camp software. Since the A1278 is a legacy machine, contains the exact audio drivers needed.
Cirrus Logic CS4206B芯片在macOS下能够完美运行，但在Windows 10下却频繁出现驱动不兼容的问题。主要原因在于：Windows 10系统默认并不包含针对苹果特定硬件的驱动程序，而Apple官方为这款老机型提供的Boot Camp驱动，在较新的Windows 10版本下可能会出现兼容性故障。
If you notice audio crackling while multitasking or switching tabs in web browsers: In that same tab, find the Exclusive Mode section.
Restart your MacBook Pro to finalize the installation. Method 2: Repairing Boot Camp Drivers