Go ahead and install your GPU driver before going ahead, it wont hurt anything to have it installed first, plus you wont be stuck in 1024x768 anymore. This will not cause the BootCamp install to fail, it will just cause it to skip installing the NVIDIA drivers which you can do yourself with the download from NVIDIA.

Next go into the first folder created by Brigadier (the older version of BootCamp) and open the driver folder and rename the 'NVidia' folder. But the version on NVIDIA's website is still newer than the version supplied by Apple, and comes with the NVIDIA Control Panel which the apple version didn't install on my computer.

OPTIONAL IF YOU HAVE NVIDIA GPU: Download the latest drivers for your GPU from NVIDIA, yes they are still there despite how old they are. (This step should have created a second folder called 'BootCamp-041-55643' Open a CMD prompt and cd to the directory where brigadier.exe is located and run the following command, brigadier.exe -model iMacPro1,1 This will download BootCamp Version 6.0. (This should have created a folder named 'BootCamp-xxx-xxxxx' where x's are the release number in my case it was 'BootCamp-031-11269' which is Version 4.0) Run Brigadier like normal and allow it to download the version of BootCamp Support appropriate for your Mac. So here is how I got it working on my Macbook Pro. Unfortunately every single guide I came across just made things worse, caused constant BSOD, or kind of worked, but lacked proper functionality of things, mostly the Keyboard, and Touch-pad. So i have an mid 2010 15' Macbook Pro, i ran older builds of windows 10 no problem for years, but apparently with build 1903 somethings changed, and there seems to be a lot of guides floating around on how to get it working.

Windows 7 on macbook air no sound