As of July 2026, the ticket that still lands most often after a clean install, feature update, or motherboard swap is not a missing product key. It is a digital license that refuses to reattach. The hardware ID changed, and the Microsoft account was never properly linked, or the wrong account is signed in. Error 0xC004F211 (“hardware of your device has changed”) and the related 0xC004F213 / 0x803FA067 variants show up within minutes