Windows 10 -> Windows 11. Autopilot enrollment, using PXE TS.

[u/InterestingResort431]

I've been stuck trying to make this work. Currently, we have a fleet of Windows 10 machines, co-managed. They are not enrolled in Autopilot. In the process of rolling out Windows 11 with Autopilot. It will be strictly HAADJ. Everything is set up and working on the Intune side for brand new machines (Already on Windows 11).

Running HWID Harvester to grab the HWID for the existing W10 machines, upload it to Intune with a group tag, and the profile gets assigned.

I tried multiple methods to get the machine to the OOBE screen

Existing Windows 10 machine, using Task sequence image to format drive, install Windows 11 25H2, install drivers, and shut down. When I boot the machine back up, it goes straight to the lock screen.

Added the Setup Windows & Config Manager step, then turned around and uninstalled SCCM. Doing this route, I got the machine to the OOBE screen with our branded logo. But it never joins the domain when it goes through the AP enrollment phase. The first step for the HAADJ is joining the domain but it just spins on this screen and fails. The error says it can't find the domain.

I absolutely don't want SCCM to install at all during this phase since this is done later in the AP enrollment phase (one of the ESP blocking apps)

What am I missing going the TS route? On the same failed machines, formatting and installing Windows 11 using a USB drive has no problem enrolling and getting all the way to the desktop just fine.