I’ve built dozens of WIn-10 VMs. Only two remain that I know of. I wonder how virtual machines factors in?
A VM counts as an installation just like any other, assuming it is active and has an internet connection.
I’ve been occasionally using Win 7 32 bit in a VM because I needed Family Tree Maker, which syncs (until two days ago) with Ancestry.com. Windows 10 is a no-go.
I have a underpowered PC with Windows Server 2008 without a keyboard or monitor that I can access remotely using Remmina remote desktop client. I may install Family tree maker on that computer because, even in a VM, windows blows.