KMS (Key Management Service) is a legitimate technology used by Microsoft for volume licensing. It allows large organizations (corporations, schools) to activate computers on their local network internally without connecting every single PC to Microsoft servers.
Key Management Service (KMS) activation is a command-line-driven process that allows client machines to activate Windows or Office products by communicating with a KMS host rather than Microsoft's direct activation servers. This method is primarily designed for enterprise environments and volume licensing. Core Commands for KMS Activation online kms activation cmd
You are relying on a "pirate" KMS server staying online. If the person hosting that server stops paying for it or gets shut down, your Windows copy will suddenly deactivate. KMS (Key Management Service) is a legitimate technology
(for volume-licensed organizations):