So if you have two graphics cards then you MUST pick the legacy BIOS path.
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I think this is a bug in the nVidia drivers and 99.99% they won’t fix it. Windows 10 will endlessly reboot, entering automatic repair etc.
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In UEFI mode, they are BOTH enabled and this will kill your Windows installation when you eventually install the graphics drivers. First is the integrated Intel graphics and then you also have a discrete nVidia graphics card. If you purchased your Macbook Pro with the graphics card upgrade, you actually have TWO graphics cards inside. From there, your Mac can proceed into either native UEFI or switch to legacy BIOS (actually it’s UEFI simulating a BIOS via the EFI-CSM module). When you power on your Mac, it first runs the UEFI firmware. Some additional notes if you want to deviate from the above or want to learn more UEFI or Legacy BIOS – avoid endless reboots Their presence kills Windows System Restore functionality.