Windows Server 2016 support ends on 12 January 2027: find your servers first

Extended support for Windows Server 2016 ends on 12 January 2027. From that date no new security updates appear for this version, unless the server is enrolled in Extended Security Updates (ESU). Most estates still hold a few 2016 servers that nobody planned for. This article shows how to find them with a command that only reads, and how to decide what happens to each one.