The tool functions by tricking the Windows operating system or Office suite into believing it is communicating with an authorized corporate KMS server. In a legitimate environment, a KMS client must connect to the server at least once every to renew its activation status. Xiaoma KMS often automates this renewal process locally so the software appears "permanently" activated to the user. Step-by-Step Usage (General Guide)

Extract the files and right-click the executable to "Run as administrator".

Xiaoma KMS Activator 10.21 is often cited for its broad support and ease of use. According to various sources, its main features include:

It typically features a simple interface where users can click a single button to activate either Windows or Office. How Xiaoma KMS Activator 10.21 Works