https://www.bleepingcomputer.com/news/microsoft/microsoft-pushes-windows-10-autopilot-update-by-mistake-how-to-remove/

Microsoft mistakenly installed the Windows 10 update for Autopilot on consumer versions of Windows. After learning of their mistake, Microsoft pulled the update from being offered incorrectly, but by that point, the update was already mistakenly installed on user's devices.

Windows 10 Autopilot is a Microsoft technology that allows enterprise administrators to pre-configure new Windows 10 devices and easily deploy and manage them on their network.