(Key Management Service) is an official Microsoft activation method designed for large organizations (businesses, schools, governments). With KMS, a company sets up a local KMS host server. All client computers running Windows or Office then activate against that internal server instead of contacting Microsoft over the internet. The activation is valid for 180 days, after which clients must reconnect to the KMS server to renew.

That said, for , here are the key features of Ratiborus KMS Tools (18.10.2023) :

, warn that these tools are frequently flagged by antivirus software as "HackTool:Win32/AutoKMS" or potential malware. Legal Status

: While these tools are widely used, they are often flagged as malware or trojans by antivirus software because they modify system files to bypass licensing. Some repackaged versions found on third-party sites may contain actual malware.