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Win11 25H2 Direct Install

SDAVE

SDAVE

macrumors 601
Original poster
Does anyone know how to install Win11 25H2 (latest) directly to a Mac Pro 7,1 without installing Win10 > Upgrade Win11 (using Rufus to remove TPM2.0)?

Making a bootable Win11 (no TPM2.0 with Rufus) doesn't allow me to boot holding down Opt key.
 
Last edited:
Flint Ironstag said:
Surprised there's been no response yet...
Click to expand...

Just tried a bunch of ways to do it and wasted some hours haha.

Currently testing:

Make bootable Windows 10 USB > Replace install.wim with file from Win11.

Was looking for an easy way to do this...
 
After trying many things and getting Windows kernel BSODs by trying to natively install Win11 using Rufus (removing TPM2.0) as well as manually adding registry settings to bypass TPM2.0 during install, here's what I ended up with.

Update:

1. Make a bootable Win10 USB stick
2. Download Win11 25H2 (latest) iso and open it and then take the support/install.wim and replace it on the Win10 USB stick
3. Boot Win10 USB installer as normal it will show as Win10 but the final install will be Win11. This will install it without TPM2.0
3. You can also setup a local user vs using a Microsoft account by hitting Shift+F10 and opening CMD prompt and running
Code: 
OOBE\BYPASSNRO

Only downside here is Bootcamp drivers, service, Bootcamp assistant won't come in properly and Bootcamp Assistant won't start, they seem to be just too old unless I'm doing something wrong here.


Note:
The best way is still installing Windows 10 then upgrading to Windows 11. I'm going to do it this way by installing Windows 10 first, installing Bootcamp as usual, then upgrading to Windows 11.

Just my 2cents if anyone needs help on this unless someone knows a better way.
 
I never installed windows 10 on my 7.1, but Windows 11 directly, but I don't remember exactly how. It was with a bootable usb stick, without bootcamp but with the bootcamp drivers. You have to download via bootcamp the windowsSupport file first. With WinToUsb : you create a bootable usb stick,
You have to copy the file "windowsSupport" on the root of your usb stick, and start with alt and choose efi boot.
It was with 22h2 I think, with a local account, but I don't know if it changes something.
And it was on a nvme (so external drive) because all the drive will be erased.
 
Last edited:
Mac3Duser said:
I never installed windows 10 on my 7.1, but Windows 11 directly, but I don't remember exactly how. It was with a bootable usb stick, without bootcamp but with the bootcamp drivers. You have to download via bootcamp the windowsSupport file first. With WinToUsb : you create a bootable usb stick,
You have to copy the file "windowsSupport" on the root of your usb stick, and start with alt and choose efi boot.
It was with 22h2 I think, with a local account, but I don't know if it changes something.
And it was on a nvme (so external drive) because all the drive will be erased.
Click to expand...

Yeah Microsoft has changed things so 24H2 and later are different.

I hosed my Win11 setup which was perfectly working fine that was there for a couple of years. It's also on a PCIe NVME.
 
SDAVE said:
Yeah Microsoft has changed things so 24H2 and later are different.

I hosed my Win11 setup which was perfectly working fine that was there for a couple of years. It's also on a PCIe NVME.
Click to expand...
yes a Pcie NVME
maybe you should try with an old version of windows (before 24h2), so
 
SDAVE said:
After trying many things and getting Windows kernel BSODs by trying to natively install Win11 using Rufus (removing TPM2.0) as well as manually adding registry settings to bypass TPM2.0 during install, here's what I ended up with.

Update:

1. Make a bootable Win10 USB stick
2. Download Win11 25H2 (latest) iso and open it and then take the support/install.wim and replace it on the Win10 USB stick
3. Boot Win10 USB installer as normal it will show as Win10 but the final install will be Win11. This will install it without TPM2.0
3. You can also setup a local user vs using a Microsoft account by hitting Shift+F10 and opening CMD prompt and running
Code: 
OOBE\BYPASSNRO

Only downside here is Bootcamp drivers, service, Bootcamp assistant won't come in properly and Bootcamp Assistant won't start, they seem to be just too old unless I'm doing something wrong here.


Note:
The best way is still installing Windows 10 then upgrading to Windows 11. I'm going to do it this way by installing Windows 10 first, installing Bootcamp as usual, then upgrading to Windows 11.

Just my 2cents if anyone needs help on this unless someone knows a better way.
Click to expand...
Boot Camp drivers should work fine. Just run them in Compatibility Mode for Windows 7 or Windows 10.
 
These are the steps that worked for me:

1. Make sure Security is set to "No Security" in Startup Recovery
2. Install Windows 10 Pro
3. Install Bootcamp drivers
4. Update to Windows 11 Pro (Create a USB using Rufus and remove TPM2.0)
5. Set Security to "Full"
5. Works as normal

Hope this helps others. Other solutions didn't work. This was the original way I installed Windows (10 > 11) but I borked the install recently so had to reinstall Win11 25H2 as I couldn't update from Win11 21H2.
 
Does anyone know where the HID Orientation Sensor drivers are? I assume this is for the Studio Display (Gen1) but couldn't find it. There's an exclamation mark on 2 of them. Rest of the drivers came in fine.
 
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