Change edition, Windows 10 Home to Pro

Hi,
i have upgraded my laptop from Windows 7 Home to Windows 10 Home. I 'm trying to upgrade to Windows 10 Pro edition from usb installation files and not store. After running setup.exe and choosing Upgrade i reach in a screen as this but it says home instead of pro and i cannot change it anyway. I also tried putting ei.cfg in sources folder with the following configuration but with no success :
[EditionID]
Professional
[Channel]
Retail
As i use the laptop for development and it has many extras i would like to avoid the time consuming process of clean installation and just do the upgrade to pro and insert the pro key afterwards. Is this possible?

davidhk said:

The following is how I understand it.
If you do have a Win 10 Pro key.................
Go to Start > Settings > Update & Security > left side, Activation > right side, Change product key > enter the generic Win 10 pro product key ............VK7JG-NPHTM-C97JM-9MPGT-3V66T
That will take you to Pro version but NOT activation.
You can then use your Win 10 Pro key to activate.

Oh my god! It worked! Changed to Pro in two minutes installation! Really thank you!

In addition: :)

Upgrade Windows 10 Home to Windows 10 Pro

If you already have a Pro key, you could enter it using the method in the tutorial to upgrade to Pro and be automatically activated with that key.