The product key can only be used to activate one PC at a time.
For virtualization, Windows 8.1 has the same license terms as Windows 10, which means you cannot use the same product key in a virtual environment.
Hopefully, this article help explains how you can install different versions of Windows on your computers.
How do I transfer my Windows 10 product key to another computer?
How to transfer a Windows 10 product key to a new PC
- Open Start.
- Search for Command Prompt, right-click the top result, and select Run as administrator.
- Type the following command to uninstall the product key and press Enter: slmgr /upk.
Is there an easy transfer in Windows 10?
Microsoft has removed Windows Easy Transfer from Windows 10 and now suggests some third-party program PCmover Express, which costs money! There is no way I’m paying any money just to transfer some data from one PC to another. Now, if you try to download the Vista version and run it on Windows 10, it gives you an error.
Can I use the same Windows 10 key on two computers?
The product key can only be used to activate one PC at a time. For virtualization, Windows 8.1 has the same license terms as Windows 10, which means you cannot use the same product key in a virtual environment. Hopefully, this article help explains how you can install different versions of Windows on your computers.
How do I move programs from one computer to another Windows 10?
How to transfer programs and files to Windows 10 computer
- Run Zinstall WinWin on your current computer (the one you are transferring from).
- Run Zinstall WinWin on the new Windows 10 computer.
- If you’d like to select which applications and files you want to transfer, press the Advanced menu.
Photo in the article by “Pixabay” https://pixabay.com/photos/photos-sharing-transfer-laptop-315170/