If you previously had a genuine version of Windows 7 or 8.1 on your hardware, you can often still activate Windows 10 using that digital entitlement by signing in with your Microsoft account.
KMS activation is a method of activating Windows 10 and other Microsoft products using a Key Management Service (KMS) host. This method is typically used by organizations and businesses to activate multiple copies of Windows 10.
: Historically, the Daz Loader worked by injecting a System Licensed Internal Code (SLIC) into the system's BIOS/boot chain before the operating system even loaded.
: Because it relies on internal code injection, it does not require an internet connection for the activation process. Decker Law Windows 10 Compatibility
Schools and businesses use Key Management Services (KMS) for legal volume licensing.