Windows Server 2025.26100.1742-oemret-x64fre-en... Jun 2026

– The major version (likely a future release; as of now, the latest is Windows Server 2022, but this naming suggests a preview or upcoming version).

This string represents more than just a file name; it is the identity of a pivotal release in the Windows Server lineage. It denotes a specific iteration of the Windows Server 2025 platform, built on the "Germanium" (24H2) codebase, marking a convergence of the server and client engineering efforts. Windows Server 2025.26100.1742-OEMRET-x64FRE-en...

Understanding these naming conventions is useful for IT administrators to ensure they are deploying the correct version for their hardware and licensing requirements. Breaking Down the Build Name Windows Server 2025 : The major product version. 26100.1742 : The specific Build Number Revision Number – The major version (likely a future release;