Windows 10 on a Mac Pro 5,1

fendersrule

macrumors 6502
Original poster
Oct 9, 2008
418
319
Hi all,

I'm sure this has been answered many times. I tried searching, but I just got lost. Perhaps a sticky may be good?

I have an internal SSD Evo 850 250GB drive that I want to use for Windows 10. I have a Windows 10 .ISO.

I have an internal 500GB PCIe SSD that I will be using as Mac OS (which I will be using 90% of the time).

What is the process of loading Windows 10 on my 250GB drive?

I understand that there's an EFI method vs a Bios method. Not sure of the differences.

I currently have an Apple 5770, but I'm sure I'll be moving onto a GTX 680 or better in the future.

Is there any step-by-step processes that would work best for me? Any shortcomings that I should be aware of?
 

ActionableMango

macrumors G3
Sep 21, 2010
9,520
6,774
  • Insert the Windows disc and reboot.
  • Hold ALT/OPTION during bootup.
  • Select "Windows" for BIOS install or "EFI" for EFI install. Personally I did EFI.
  • Direct Windows to install to the appropriate drive. Personally I had already removed all other drives prior to installation, in order to prevent an accident.
 
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fendersrule

macrumors 6502
Original poster
Oct 9, 2008
418
319
Hmm, so somehow I need to take this windows iso and convert it into a bootable disk in MacOS. Any ideas? Maybe just let Toast do it's thing as an image file....
 

ActionableMango

macrumors G3
Sep 21, 2010
9,520
6,774
Hmm, so somehow I need to take this windows iso and convert it into a bootable disk in MacOS. Any ideas? Maybe just let Toast do it's thing as an image file....
In Toast do a "Copy Disc" and "Select from Image File".

In Windows you can use the free "Media Creation Tool".
 

fendersrule

macrumors 6502
Original poster
Oct 9, 2008
418
319
Mango, I have an older version of Toast. (Toast 8 Titanium).

I did Copy -> Image File, and just dragged over the Windows .ISO.

Upon booting (option key held down), I only get one image named "WINDOWS". No EFI in sight. I didn't pull anything out of the machine yet, just wanted to test to make sure the EFI image is showing up.

I'm assuming I should see two things, one that denotes an EFI and the other that denotes a BIOS.

I didn't proceed because of that. Let me know what you think.

Also, is there any way I should prep my SSD that I will be using in Disk Utility before beginning?
 
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