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#11
Ok, I see what you are getting at. And a very handy bootable USB flash drive to have is a combined Kyhi recovery drive/Windows 10 installation drive. Take the boot.wim file from the sources folder of Kyhi's recovery drive and overwrite the boot.wim file in the sources folder of a Windows 10 installation drive. (You can rename the Windows boot.wim to boot.bak first if you want to keep it).
Then you can image the factory fresh hard drive and go right into Windows setup from file explorer on Kyhi's drive and don't have to swap USB flash drives and reboot. I would have done that, but I also wanted to upgrade the stick computer to Pro, so what I did was boot into the factory Windows 8.1. Did not enter the password for my WiFi so there was no internet connection. Created a local account on it. Went into settings and turned Windows updates off. Then connected to the WiFi to activate it, installed Macrium Reflect from my NAS, imaged the hard drive, exported the device drivers, then upgraded to Windows 8.1 Pro. Finally grabbed the genuineticket.xml from Windows 8.1 Pro and did a clean install.
Windows 10 picked up the Windows 8.1 with Bing product key in bios and installed Windows 10 Home. That activated, I got all the drivers installed and settled in, then upgraded to Windows 10 Pro and used the genuineticket.xml file to activate it. So now the stick computer has digital entitlements to both Windows 10 Home and Windows 10 Pro.