The tool creates a virtual KMS server on your local machine. Redirection:

KMSAuto v1.85 is a lightweight software that can be used to activate various versions of Windows and MS Office products, including Windows 10, Windows 8.1, Windows 7, and Office 365, Office 2019, Office 2016, and more. The software uses the KMS protocol, which is a legitimate method of activation developed by Microsoft. KMSAuto v1.85 is not a crack or a patch, but rather a tool that uses the KMS protocol to activate Microsoft products.

It changes system settings so that when Windows or Office attempts to verify a license, it connects to this local virtual server instead of official Microsoft servers. False Validation: