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wnlewis

macrumors regular
Original poster
Jan 20, 2017
180
45
Newton, Kansas
I am considering downgrading my Mac Pro 5,1 (upgraded from 4,1) from Mojave to High Sierra so that I can do an install of Windows using Boot Camp Assistant. How difficult or hard would that be to do? Then after I get Windows installed with Boot Camp Assistant, would I be able to upgrade to Mojave again and keep the boot options at startup?
 

startergo

macrumors 603
Sep 20, 2018
5,022
2,283
you can try the Bootcamp assistant attached to this post:
 
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wnlewis

macrumors regular
Original poster
Jan 20, 2017
180
45
Newton, Kansas
you can try the Bootcamp assistant attached to this post:
Yes the drive on this Mac is formatted APFS and yes it is running Mojave. So I have ordered two 1 Tb Samsung EVO 860 SSD drives and plan to start the attempt to get a bootable (at startup) copy of Windows installed. Please bear with me. I may - probably will - have a lot of questions.
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You don't need BCA to install Windows- get the relevant driver package https://support.apple.com/kb/DL1720?locale=en_US, format and/or partition the drive in Disk Utility, and just run the Windows installer manually.
 
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