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Windows 12 May Require a Subscription
(www.pcmag.com)
This is a most excellent place for technology news and articles.
It's more likely to be some sort of license for companies than anything else. I'd be impressed if they actually think the average windows user would pay for it.
Microsoft has been moving more and more of their products to a subscription service. Doing it with Windows itself has been theorized for a while now.