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#11
K. So you should be upgrading to Windows 10 Pro. Not Single Language, not "N" edition, just plain Windows 10 Pro. The current download option to get that from Microsoft will be just plain Windows 10 with nothing else behind it. That will get you both Windows 10 Pro and Home versions.
What I would do from here is get a Windows 10 ISO:
Windows 10 ISO Download - Windows 10 Forums
I prefer option 1 from above.
Mount the ISO in Windows 7:
How do I mount iso image file in Windows 7?
Grab the genuineticket.xml file and save it to a USB thumb drive or other external storage device/location. Do steps 1-6 here and stop:
Clean Install Windows 10 Directly without having to Upgrade First - Windows 10 Forums
After that is done, then run setup.exe from the mounted ISO file from inside Windows 7, it should upgrade to Windows 10 Pro with no input from you asking for a product key or which version you want to install.
NOTE: because the Windows 7 product key installed is OEM:SLP, it cannot be entered manually to activate either Windows 7 or Windows 10. That's why you want to grab the genuineticket.xml file (for future use if something goes wrong), and want to do an in-place upgrade. You can just move onto a clean install using the genuineticket.xml file if you want to, but if it were me, I would attempt to do the in place upgrade first because if the in place upgrade asks you for a product key, you probably have the wrong edition of Windows 10 downloaded.