Cause: You formatted your USB as MBR instead of GPT.
Solution: When using Boot Camp Assistant, always let it handle the USB creation. If doing it manually, use diskutil list in Terminal to confirm your internal drive is GPT.
If you already have Windows 10 installed on a compatible Mac, open C:\Windows\System32\DriverStore\FileRepository\ and search for applebootcamp.inf. The parent folder name will contain 6.1.7931. You can back up the entire AppleBootCamp directory for future reinstallation.
To maximize your Mac’s performance under Windows using Bootcamp 6.1.7931, apply these tweaks: bootcamp 6.1.7931
Assume you have already used Boot Camp Assistant to partition your drive (usually 64GB minimum, 128GB recommended).
If Boot Camp Assistant refuses to download because Windows isn't installed yet, use the open-source tool brigadier (by Josh Bleecher Snyder): Cause: You formatted your USB as MBR instead of GPT
# In Terminal on macOS
brew install brigadier
brigadier -m MacBookPro16,1
This fetches the exact driver package for MacBookPro16,1, which includes 6.1.7931.
Apple’s Precision Touchpad drivers, when first introduced, were clunky. Version 6.1.7931 offers the perfect balance: full multi-touch gesture support (three-finger swipe, four-finger Exposé) without the intermittent lag or phantom clicks found in earlier or later releases. This fetches the exact driver package for MacBookPro16,1,
MacBooks with dual GPUs (Intel HD + AMD Radeon Pro 450/455/460/555/560) suffered from "black screen on boot" issues with newer Bootcamp drivers. Version 6.1.7931 includes the correct AMD PCI bus drivers that respect the gpu_policy registry key, allowing stable switching between power-saving and performance modes without freezing the OS.