We tried the upgrade 3 times and each time it failed to work. Searching the web suggested that we were the only ones to ever encounter this issue, but I'm sure that is not the case.
So, we set out to install Windows 10 Pro directly on the laptop, fresh, without upgrade from Windows 10 home, but unfortunately, no matter what we tried, it never prompted us for the version and always installed home. It took a lot of googling and forum reading before we found a page that outlined how to get Windows 10 install to prompt for which version of windows to install. You can find the full page here. My summary is as follows:
Create a text file with the following contents:
Code: Select all
[EditionID]
Professional
[Channel]
Retail
After we installed a clean copy of Windows 10 Pro, the system joined the domain and works without any issues, as it should have with the upgrade.