To use the GVLKs listed, you need a KMS host on your local network. If you don't have one, you can learn how to create a KMS host. learn.microsoft.com
In Mark's case, the "generator" didn't give him a key. Instead, it ran a script that modified his system files—a method often associated with "KMS activators" rather than true keygens. It tricked his specific PC into thinking it was part of a corporate licensing network. windows 10 home key generator
