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Microsoft tells Windows 10 users to just trade in their PC for a newer one, because how hard can it be?
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
Yup. OG Ryzen had TPM but wasn't supported for Windows. Not sure if that has changed.
Probably a bios update would be enough
Maybe? I never bothered to check, but my understanding was they specifically didn't support that gen for whatever reason.