I have a 1,1 that has Windows 7 bootcamp drive. It was a bit of a headache setting this up with the 64 bit drivers for Windows but eventually got all the drivers going. Has any put Windows 10 on a 1,1. Curious how it went.
BootCamp Nvidia is needed for Coprocessor and SMC Support. These are no Video Drivers. Apple Video Drivers 332.28 are working fine. Newer Drivers caused Problems on Windows 7 as well. No issues with Windows 10 on a MB Pro 7.1 ( 13, Mid 2010 ). There is a hidden issue with the Apple BootCamp Windows HFS+ driver, which can be solved as well.