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You probably already know about this, but If you ever do reinstall your wifes win 11, its possible to do it without linking it to an online account. I managed that on my win 11 and glad I spent the time to figure it out.
https://pureinfotech.com/bypass-internet-connection-install-windows-11/
The detour starts by making sure the computer is not connected to ethernet,
and then at the “Oops, you’ve lost internet connection” or “Let’s connect you to a network” page, instead of connecting, use the “Shift + F10” keyboard shortcut.
Then you type the magic word OOBE\BYPASSNRO
and it will restart, this time giving you an option for "I don't have internet" and end up creating a local account
