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Windows 10 reaches 70% market share as Windows 11 keeps declining
(www.neowin.net)
This is a most excellent place for technology news and articles.
I don't think it would matter what it was, I'm not doing an entire OS reinstall to "upgrade" to an inferior experience. If it can't apply the update itself, it's not going on until it absolutely has to, and even then it's looking more likely to be Linux next boot install.