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Windows 10 LTSC – the version that won't expire for years
(go.theregister.com)
This is a most excellent place for technology news and articles.
When's the last time you tried? I had a hell of a time dual booting in ~2016, but as of the last five years or so I've set up half a dozen dual boots without issue, and Windows (LTSC) hasn't messed up any of the partitions.