September 14, 2026, 2026—KB5129239 (OS Build 14393.9514) Out-of-band

September 14, 2026, 2026—KB5129239 OS Build 14393.9514 Out-of-band Applies To Windows Server 2016, all editions Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Important Free support for Windows 10 Enterprise 2016 LTSB and Windows Server 2016 will soon end. For information about the availability of...