First of all we’ll need to extract the content of Windows 10 setup ISO file or just open an already prepared USB installation drive
Now open Notepad and copy/paste following piece of code inside:
You can also totally skip the [EditionID] part in the “ei.cfg” file so that Windows 10 setup asks you to choose desired edition at the time of clean installation:
Now save the file with the name “ei.cfg” (use the double-quotes “” while saving the file otherwise Notepad will create a text file with the name ei.cfg.txt).
Now copy the “ei.cfg” file and paste it into Sources folder of Windows 10 setup folder which you got after extracting ISO file.
Open up notepad and type in the following:
Where key is your retail key in the form xxxxx-xxxxx-xxxxx-xxxxx-xxxxx or the generic keys above. e.g.
Ignore theits not requires with the up to date .iso which are Edition locked. Inputting the PID actually Edition locks the older .iso anyway.
In the sources folder copy both the:
Now you can create bootable USB drive or burn the files to a DVD and install Windows 10 Pro edition without any problem or just eject the prepared USB drive with the files inside.
Run again the installation from USB drive