https://devicepartner.microsoft.com/en-us/communications/comm-windows-ends-installation-path-for-free-windows-7-8-upgrade
https://www.nichepcgamer.com/archives/windows7-8-81-product-keys-will-not-be-able-to-activate-the-new-windows11.html

もうVIPに使ってるような奴はいないよな？