If you bought the machine with Windows 10 or upgraded it from a legitimate copy of Windows 7 or Windows 8 it has been activated ever since.
It does not matter if you log in with a local account or a Microsoft account, the OS connects to the Microsoft servers and attempts to activate itself (and, unless you have a non-legal version, it does).
It happened because it's the normal course of events. If you have a copy that has not been activated it will stop working in 30 days unless you buy a license key.
I mentioned the local account to "prove" I wasn't an Insider.
This is a clean install on a custom machine (I wiped both my drives, and installed). Maybe Windows used my IP? I never activated it, I always used the "free" version, that doesn't let you customize the look and has the watermark.
I'm pretty confused, because of this:
- You upgraded to Windows 10 for free from an eligible device running a genuine copy of Windows 7 or Windows 8.1.
- You bought genuine Windows 10 from the Store and successfully activated Windows 10.
- You bought a Windows 10 Pro upgrade from the Store and successfully activated Windows 10.
- You’re a Windows Insider and upgraded to the newest Windows 10 Insider Preview build on an eligible device that was running an activated earlier version of Windows and Windows 10 Preview.
It's a digital license, and according to Microsoft, those are the only ways to obtain it. I don't have any of those requisites.
Thanks for the reply.
Edited by SupermanPrime, 11 August 2017 - 11:21 PM.