This is because we installed the boot files of Windows 10 onto the internal EFI partition. Select Windows to boot. Complete the setup. Plug in your Windows 10 USB Installer and open the BootCamp. Boot Camp 5.1 includes several Mac drivers so that Windows will recognize your trackpad, Thunderbolt, USB 3.0, the iSight (or FaceTime) camera, the Eject key on the Mac keyboard, networking, audio, graphics, and so on. A Boot Camp Control Panel for Windows and an Apple Boot Camp system-tray item will be added. So, I started out by deleting the old Win7 Bootcamp Partition using the Bootcamp Assistant on Mac and then created a new partition and went on to install Windows 10. Everything seems to have gone smoothly: Partitioning, Installation of Windows 10, and the Apple Bootcamp drivers. However, the Mac Partition does not show up in Windows File Explorer.
Classic Mac Pro 5,1 (or simply cMP, also 4,1 upgraded to 5,1) is now considered by Apple as vintage. It’s pretty disappointing considering how capable and upgradable these machines still are. Installing Windows is no longer officially supported, but it’s completely possible though not quite easy.
Another challenge is that macOS Mojave 10.14 now implies using Metal-capable GPU while most of them are not able to display Apple boot menu (which you normally see holding the Option key) required to boot into Windows. Basicaly your screenremains black until macOS is loaded. Well, some EFI bootable cards that support boot menu exist but they are released almost 10 years ago and are really outdated. What is more, none of them supports displaying of boot menu with 4k 60hz monitor connected.
This guide is for those who want macOS Mojave + Windows 10 + modern GPU (in our case Sapphire Radeon Pulse RX 580 8GB).
Updated 28 May 2019
It’s supposed that you have the latest Boot ROM version 144.0.0.0.0. If not, please update first.
Boot Camp Assistant no longer supports cMP and doesn’t allow creating a separate partition for Windows.Windows has to be installed on a separate drive, which is good actually to avoid messing with partitions in future.
We recommend using the internal SATA II connector in one of four drive bays or alternatively one of two SATA II connectors in the optical drive area. Using the HP 654540-001 3.5” → 2.5” adapter (7$) to place 2.5” SSD in a drive bay can be quite convenient.
Of cause, SATA II (up to 300MB/s) is a bottleneck for modern 2.5” SSDs (up to 550 MB/s where SATA III is preferable) but real life experience shows that the difference is hardly noticable unless you deal with lots of big files (e.g. >1GB where sequential read/write speeds matter) on your system drive.
We didn’t test using PCIe → SATA III adapter or PCIe → NVMe adapter for Windows partition. Many people reported it was not possible in their case. If you successfully did it please let us know in the comments below or via e-mail.
Warning: DO NOT install Windows from a USB flash drive. It has been discovered that Windows when installed in EFI mode is corrupting the Mac Pro’s firmware by signing it with multiple Secure Boot (X.509) certificates. Also, you wouldn’t be able to boot into Windows after selecting its drive as bootable in macOS Preferences → Startup disk. Therefore Windows should only be installed in Legacy BIOS mode from an optical drive.
Make sure that your Windows 10 ISO file fits on the DVD disk, in our case we had to burn Windows 10 1803 ISO (64-bit) to a single-layer DVD+R disc 4.7GB.
Burning a DVD disk under macOS can be done with the following Terminal command:
On Windows we recommend using the free ImgBurn app.
Turn on your mac while holding the “C” key to boot from the optical disk (if you have PCIe drives installed and can’t boot from the disc, remove those PCIe adapters).Proceed with installation normally until you see the “Where do you want to install Windows” drive selection screen.
Press Shift+F10 to launch command prompt. Type the following commands:
Now make sure to select the correct target drive number N (NOT your macOS disk), after that type:
You should now see your drive as Unallocated space.
Press the “New” button to create necessary partitions. There should be only two partitions (for legacy installation, EFI mode creates four) automatically created:
Select the newly created partition 2 and continue with installation normally. Your mac will be rebooted twice.Every reboot do not forget entering the boot menu (by holding the Option key) and selecting ‘Windows’ boot drive there. When finished, boot into Windows.
Windows 10 installs all necessary drivers automatically except Bluetooth and internal speaker. These need to be installed from the original Boot Camp package for MacPro5,1.Download and install 7zip, download Brigadier 0.2.4 app, open Windows command prompt where Brigadier is located and type:
When finished, it will create a folder BootCamp-031-11269, you need to install these for Bluetooth and internal speaker correspondingly, make sure you run the command prompt as administrator:
Now we need newer BootCamp drivers intended for iMacPro1,1:
When finished, it will create a folder BootCamp-041-55643, you need to run this command:
When finished, reboot. We also recommend running Apple Software Update to update Wifi drivers:
You probably don’t want to forget installing our awesome Macs Fan Control app, do you? :)
When you’re in macOS, use Preferences → Startup disk to select a boot drive:
When you’re in Windows, use the Boot Camp Control Panel from your Windows tray to select a boot drive:
This guide is based on this MacRumors thread. Special thanks to h9826790 for sharing his useful experience. Any comments are welcome.
Boot Camp requires a Mac with an Intel processor.
When you install Microsoft Windows on your Mac, Boot Camp Assistant automatically opens the Boot Camp installer, which installs the latest Windows support software (drivers). If that doesn't happen, or you experience any of the following issues while using Windows on your Mac, follow the steps in this article.
If your Mac has an AMD video card and is having graphics issues in Windows, you might need to update your AMD graphics drivers instead.
Before proceeding, install the latest macOS updates, which can include updates to Boot Camp.
To install the latest Windows support software, you need a 16GB or larger USB flash drive formatted as MS-DOS (FAT).
After preparing your USB flash drive, complete these steps:
Learn what to do if you can't download or save the Windows support software.
After downloading the Windows support software to your flash drive, follow these steps to install the software. (If you're attempting to resolve issues with a Bluetooth mouse or keyboard, it might be easier to use a USB mouse or keyboard until these steps are complete.)
If you can't download or save the Windows support software:
If a Mac feature still doesn't work after updating the Windows support software, search for your symptom on the Apple support website or Microsoft support website. Some features of your Mac aren't designed to work in Windows.