MP 6,1 Mavericks and Windows 7?

[Halian]

I installed Mavericks on my MP6,1, and it’s run more stably than Sequoia did. I would like to dual-boot it with Windows 7, the last best version of Windows; however, Boot Camp demands I use Windows 8 instead. Is it possible to defy this restriction, and if so how?

 

[conmee]

Check the link below to download the Bootcamp Support Files that support Windows 7 installation. It should install on Mavericks and then give you the option for Windows 7.

Download Boot Camp Support Software 5.1.5769 - Apple Support

This download contains the Windows Support Software (Windows Drivers) you need to support 64 bit versions of Windows 7, Windows 8, and Windows 8.1 on your Mac.

support.apple.com

 

[tsialex]

You can't install Windows 7 bare metal to a MacPro6,1.

Apple Drops Windows 7 Boot Camp Support in New Mac Pro

Apple's Mac Pro only supports installations of Windows 8 or later with Boot Camp, according to an updated Apple Support document that lists versions of Windows compatible with the 2013 Mac Pro. Boot Camp Assistant on the Mac Pro also specifies that it only includes support for Windows 8 or...

www.macrumors.com

First and most important, no CSM/legacy and no INT10h support with MacPro6,1.

Second to have any chance of installing Windows 7 via UEFI, you need to modify Windows 7 installer to include AMD FirePro 300/500/700 drivers and also include VgaShim/UEFISeven or you won't even have video working with the installer.

[GUIDE] Install Windows 7 in MacBook Pro Early 2015 with almost fully support(include track pad)!!

Failed to install windows 7 on Mac Pro 2013 late . Causes MP don’t have intel Graphics in Xeon cpus . And amd gpu driver can’t add to boot.wim & install.wim . After boot in win7 usb,is some error message with black screens.

forums.macrumors.com

 

[conmee]

You can't install Windows 7 bare metal to a MacPro6,1.

First and most important, no CSM/legacy and no INT10h support with MacPro6,1.

Second to have any chance of installing Windows 7 via UEFI, you need to modify Windows 7 installer to include AMD FirePro 300/500/700 drivers and also include VgaShim/UEFISeven or you won't even have video working with the installer.

[GUIDE] Install Windows 7 in MacBook Pro Early 2015 with almost fully support(include track pad)!!

Failed to install windows 7 on Mac Pro 2013 late . Causes MP don’t have intel Graphics in Xeon cpus . And amd gpu driver can’t add to boot.wim & install.wim . After boot in win7 usb,is some error message with black screens.

forums.macrumors.com

OP mentions “dual-boot” and Bootcamp. Shouldn’t Win7 install via Bootcamp with the appropriate Bootcamp Support files I linked?

 

[tsialex]

OP mentions “dual-boot” and Bootcamp. Shouldn’t Win7 install via Bootcamp with the appropriate Bootcamp Support files I linked?

I've explained already why MacPro6,1 does not support Windows 7, also you can't run BootCamp5 with a MacPro6,1, the BootCamp installer rejects it with a model not supported.

MacPro6,1 does not have CSM/legacy support and no INT10h for the VGA BIOS to work. AFAIK is the first Mac to not have CSM support and can't even show a legacy install with Apple native BootPicker.