Windows 10 Pro Edition can't be selected during reinstallation
This article has not been completed yet. However, it may already contain helpful Information and therefore it has been published at this stage.
Windows 10 setup automatically detects the edition type of a previously installed Windows version in your computer and then it installs the corresponding edition of Windows 10.
To avoid this, follow the instructions below:
- Forcing the installation of a specific Windows version
- Forcing the selection of a specific Windows version
Copy the ei.cfg file to the sources folder on the desired installation media (USB stick / ISO).
Boot from the desired installation media....
Result:
Source:
https://www.askvg.com/fix-cant-select-windows-10-pro-edition-during-clean-installation/