10, 2023. The program is also included with Microsoft Azure purchases, and Azure customers receive an extra year of support, until January 9, 2024. The licenses are paid for on a per-machine basis. If a user purchases an Extended Security Updates license in a later year of the program, they must pay for any previous years of Extended Security Updates as well. See also BlueKeep (security vulnerability) Comparison of Microsoft Windows versions Comparison of operating systems History of Microsoft Windows List of operating systems Microsoft Servers Notes References Further reading External links Windows Server Performance Team Blog 2008 software IA-32 operating systems X86-64 operating systems