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Dewdman42

macrumors 6502a
Jul 25, 2008
513
103
so is it true that even with OpenCore we will have to have TPM hardware installed in order to run Windows11 (once it is past early beta stages)?
 

Dewdman42

macrumors 6502a
Jul 25, 2008
513
103
So has anyone tried Windows11 on bare metal cMP yet? There are some hackarounds out there to remove the TPM check from the Windows11 installer, that supposedly work on PC's without it.. but wondering if anyone has tried this to install Windows11 in legacy mode on cMP.
 

Max1978

macrumors newbie
Aug 16, 2018
4
2
Hi There my name is Max, I have Macbook 5,1 (late 2008) with OCLP + Big Sur in the main disk, and Windows 11 on a second disk, I could do this thanks to this guide from Dayo, I proved everything USB, different formats, different ISOs, the only thing that's worked for my was installing Windows 10 following step by step this guide , and then after the installing and fighting with some drivers, not much, the trackpad mainly , everything worked great , then upgraded windows 10 to 11 following this:
How to upgrade from Windows 10 to 11

Now everything working great , I just want to share my experience, sorry for my English im from Argentina.
Bye and good luck!!!
 

prefuse07

Suspended
Jan 27, 2020
895
1,073
San Francisco, CA
So has anyone tried Windows11 on bare metal cMP yet? There are some hackarounds out there to remove the TPM check from the Windows11 installer, that supposedly work on PC's without it.. but wondering if anyone has tried this to install Windows11 in legacy mode on cMP.

Why do people keep asking this same question? (bold above)

How would you install it in legacy mode if UEFI is a requirement for Windows 11?

And why would you even need to go through all of that if it runs absolutely fine on the cMP in UEFI mode? (I have had no problems with it or OpenCore 0.7.5)

The tricky part is disabling TPM, that's all.
 

Max1978

macrumors newbie
Aug 16, 2018
4
2
Why do people keep asking this same question? (bold above)

How would you install it in legacy mode if UEFI is a requirement for Windows 11?

And why would even need to go through all of that if I have it running absolutely fine on my 2009 cMP in UEFI mode?

The tricky part was disabling TPM.
Hi , i don't know if you're asking to me? anyway I install windows 10 as I said before following dayo`s guide , then I just upgraded from windows 10 to 11 , following the instructions in the video link, is a method that uses a modified version of mediacreationtools of win , to allow pass to everything that windows 11 installation requires.
 

joevt

macrumors 604
Jun 21, 2012
6,963
4,257
Hi , i don't know if you're asking to me? anyway I install windows 10 as I said before following dayo`s guide , then I just upgraded from windows 10 to 11 , following the instructions in the video link, is a method that uses a modified version of mediacreationtools of win , to allow pass to everything that windows 11 installation requires.
Did you install Windows 10 using legacy or UEFI? I guess UEFI if Windows 11 is working?
 

Max1978

macrumors newbie
Aug 16, 2018
4
2
Did you install Windows 10 using legacy or UEFI? I guess UEFI if Windows 11 is working?
Hi Joevt, I install windows 10 using legacy on a secondary disk with VirtualBox unchecking the option UEFI boot , using this Dayo method and works great, then upgrade the windows 10 to 11 , I have Open Core legacy patcher 0.3.3 when boots and open directly on mas os Big Sur , if I want to use Win11 , I have to press option key and then select my secondary disk then boots with win 11, like I said I did it following the video with how to upgrade windows 10 to 11.
 

joevt

macrumors 604
Jun 21, 2012
6,963
4,257
Hi Joevt, I install windows 10 using legacy on a secondary disk with VirtualBox unchecking the option UEFI boot , using this Dayo method and works great, then upgrade the windows 10 to 11 , I have Open Core legacy patcher 0.3.3 when boots and open directly on mas os Big Sur , if I want to use Win11 , I have to press option key and then select my secondary disk then boots with win 11, like I said I did it following the video with how to upgrade windows 10 to 11.
So that means Windows 11 can work from legacy/non-UEFI boot.
Here's three methods: https://windowsreport.com/install-windows-11-legacy-bios/
 

prefuse07

Suspended
Jan 27, 2020
895
1,073
San Francisco, CA
So has anyone tried Windows11 on bare metal cMP yet? There are some hackarounds out there to remove the TPM check from the Windows11 installer, that supposedly work on PC's without it.. but wondering if anyone has tried this to install Windows11 in legacy mode on cMP.

***NOTE THAT THIS PROCEDURE ONLY APPLIES TO THE cMP 4,1 and 5,1. NOT THE 7,1***

I did a TON of research into this, there is a lot of stuff on reddit, and on other hackintosh sites as well on this topic, so you should be able to find many guides on how to do it.

Here is what I did:

After getting OpenCore running on my Mac SSD [which sits in an OWC PCIe adapter in PCIe Slot 4 (top slot)]

To get Windows running, I did this:

First, follow cdf's Windows Install instructions at the top of the 'OpenCore on Mac Pro' thread

Then, when his instructions tell you to install Windows:

Install Windows 10 64 bit on a fresh SSD in UEFI mode (formatted/wiped clean), which sits in the SATA bays of the cMP.

Disable TPM via windows registry editor

Use MCT tool to install Windows 11

Update to latest Windows 11 build by going into Settings>System>Windows Update

Voila, you should now be running the latest build: 10.0.22000.466 (Jan. 14, 2022)

I've been running this setup without ANY issues.

I use OC to choose which OS I want to boot into. I.E. if I want to watch Blu Rays, I restart, then choose macOS (since I have a BR drive installed and Blu-Ray Player Pro on my macOS drive).

If I want to play games (or whatever else Windows specific), restart > choose Windows @ OC boot picker.

This may also be a good read...

Hope this helps!
 
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quadra605

macrumors member
Dec 20, 2019
69
6
Los Angeles
Everything worked fine until I got to the boot screen (I have OC installed). There was no Windows disk to choose to boot up from. In System Preferences > Startup Disk I see a voulme called "Untitled Windows" but choosing it doesn't start up from it. What did I miss? :/

Mac Pro 4,1>5,1 OS 10.14.6, RX560 GPU, Open Core Installed
 
Last edited:

Dayo

macrumors 68020
Original poster
Dec 21, 2018
2,257
1,279
I haven't tried the UEFI Windows installation myself, but selecting that option should work.
 
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Pascal Baillargeau

macrumors 6502
Mar 4, 2019
342
304
France
I haven't tried the UEFI Windows installation myself, but selecting that option should work.
You should try this tool to update Win10 to Win11, bypassing all limitations: TPM 2.0, CPU, without editing anything.
It worked for me on iMac 27'' 2011, iMac 21,5'' 2011, iMac 20'' 2007 (tricky, in Bios mode, without OC, MyBootManager should be a solution here, but i had no time to tried yet), HP4540s, HP 1012 X2 G1.
 

avro707

macrumors 68020
Dec 13, 2010
2,263
1,654
I'm trying to get through this with a Mac Pro 7,1 and macOS 12.4 - I'm getting stuck with the restart and hold down option, the Mac doesn't want to let me boot into Windows because it is an NVME (on sonnet card) and is seen as an external drive.

How do I get around this? I can't use Bootcamp either because it complains about external drives attached. Well yes, the NVME is where I want to install windows.

And also at the step where the windows install in the VirtualBox is doing the 10 second countdown to the restart, do I power off the VM at that point? Or wait for that bit to end and the blue install screen to go?
 

startergo

macrumors 603
Sep 20, 2018
5,020
2,282
I'm trying to get through this with a Mac Pro 7,1 and macOS 12.4 - I'm getting stuck with the restart and hold down option, the Mac doesn't want to let me boot into Windows because it is an NVME (on sonnet card) and is seen as an external drive.

How do I get around this? I can't use Bootcamp either because it complains about external drives attached. Well yes, the NVME is where I want to install windows.

And also at the step where the windows install in the VirtualBox is doing the 10 second countdown to the restart, do I power off the VM at that point? Or wait for that bit to end and the blue install screen to go?
You can use OpenCore and make the drive appear as internal. Also you need to disable in the firmware booting only from known OS's.
 

avro707

macrumors 68020
Dec 13, 2010
2,263
1,654
So that's the only option, OpenCore again - on a brand new Mac Pro 7,1? :(

I was hoping I wouldn't need it anymore now I'm moving away from old Mac Pros.
 

Matty_TypeR

macrumors 6502a
Oct 1, 2016
641
555
UK
I have windows 11 that boots fine from external M2 980 pro drive.

Start bootcamp assistant, at the top menu bar download all driver files for bootcamp then exit bootcamp. save files to USB drive.

Boot into recovery, at the top menu bar you have security option, disable T2 security enabling boot from external drive.
have the latest version of windows 10 on usb to install on USB drive.

Format in disk utility the drive you wish to load windows on in FAT, then shut down your mac. put USB stick with windows on to USB port, hold option key while booting, then select windows USB install. (NOW THIS IS IMPORTANT BIT IT SEEMS THAT NOTHING IS HAPPENING but wait just leave it, maybe 3 mins later windows install loads.

Then select the drive formatted earlier in FAT, delete all partitions on that drive, then hit new.
then carry on and install windows 10, after its loaded you can load the bootcamp install from USB drive. this then gives you the option to reboot to Mac OSX from windows.

After all drivers have been updated you can then disable the WIN 11 check and update to windows 11 keeping all your apps and files which you wont have any apart from bootcamp install on win 10.

After it has updated to win 11 you will find bootcamp will still let you boot into Mac OSX and when you start the machine you can hold down the option key and boot into windows at any time. can also be selected from preferences start up disk in Mac OSX.

I have a 6900xt in my Mac pro 7.1 so used DDU to un install all the bootcamp AMD drivers so i could install the Latest AMD drivers directly. I have the Apple 580x also installed via these drivers and both work under windows with no problems all works fine. but you might not need to do this if useing an Apple GFX card only.
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avro707

macrumors 68020
Dec 13, 2010
2,263
1,654
Thanks - I’ll give that method a go too.

I was trying the VirtualBox method but would always fail at the restart step, it just wouldn’t appear as a bootable drive after holding option, even with disable the security in recovery mode.
 

Matty_TypeR

macrumors 6502a
Oct 1, 2016
641
555
UK
The above method is what i have found best, the M2 pro drives are faster than the internal Apple 4tb drive. plus windows is on its own drive, not like apple wants to use part of the main apple drive. plus bootcamp works from the M2 drive perfectly also from start up disk preferences in OSX.
 

avro707

macrumors 68020
Dec 13, 2010
2,263
1,654
@avro707 glad to see you finally received your 7,1! 👏
Thaniks - very happy. :)

The above method is what i have found best, the M2 pro drives are faster than the internal Apple 4tb drive. plus windows is on its own drive, not like apple wants to use part of the main apple drive. plus bootcamp works from the M2 drive perfectly also from start up disk preferences in OSX.
I got it working eventually.

And this is a way for some others if you have many disk drives in your Mac Pro 7,1:
  • I took one of the NVME drives and configured it for the windows Installer. Format with EXFAT so the install ISO can be copied onto that drive. This way will make the installer run really fast.
  • The other drive just format with FAT32 and call it something obvious like BOOTCAMP
  • Reboot Mac and hold down option (easier with wired keyboard) then choose Windows.
  • Followed Matty_TypeR's instructions to get the installer to format your BOOTCAMP drive (should be empty)
  • Eventually after many restarts it will run Windows 10
  • Install the bootcamp drivers.
Gotchas I encountered:
  • If you have Thunderbolt display like me (LG 5K), it probably won't connect at all to start with. My other second screen was connected USB Type C. But it could connect using HDMI to Radeon Pro W6800X. Leave that connected until install finishes and Bootcamp drivers are installed and updated.
  • On my machine in Windows 10 it suggests it cannot find the Mac boot drive when trying to restart. You can still get around this by holding down OPTION on starting the machine and choosing Mac OS.
  • if you are trying the VirtualBox method and run into a problem where you get a checkered green screen appearing when the VM starts, this could be the result of having the Intel Power Tools running. Those interrupt the VM.
 
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