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Artemis II Astronauts Have ‘Two Microsoft Outlooks’ and Neither Work
(www.404media.co)
This is a most excellent place for technology news and articles.
Of course a submarine's systems won't be connected to the internet, but using a Windows base with a "Custom Support Agreement" still gives a private US corporation the power to cripple their subs.
IMO something so critical to defense should be built by British developers, and based on OpenBSD.
Further to this, there isn't a 'launch the nuclear weapons' application which controls things. Windows is used for the day to day admin - producing the paperwork required in any organisation - but the actual control systems, for the submarine, the weapons the reactor etc are not running off windows.