It sets up a virtual Key Management Service (KMS) server directly on your local machine. The operating system detects this local server, submits its activation request, and receives a spoofed approval.
: Microsoft ended support for Windows 7 on January 14, 2020 . Using activators on an unsupported OS further increases your vulnerability to security threats, as the system no longer receives critical security patches. Kj Starter Windows 7 Activator