: By early 2021, the build had advanced significantly; for example, the January 12, 2021, update (KB4598243) moved the version to OS Build 14393.4169 Microsoft Support Key Context for "April 2017"
Windows Server 2016 followed the Fixed Lifecycle Policy. Mainstream support ended on January 11, 2022, meaning 2021 was the final year of full functional updates before entering Extended Support.
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This guide outlines the details and lifecycle for , a specific maintenance release from March/April 2017 . While this build was a key milestone in the OS's early life, Windows Server 2016 is currently in its Extended Support phase , meaning it only receives critical security updates. Build Overview: 14393.970 (March/April 2017)
No build is without drawbacks. Some administrators reported that 14393.3970 introduced a rare but persistent issue with Remote Desktop licensing after reboot. Others noted longer than usual update installation times—a common complaint with Windows Server 2016 due to its component-based servicing stack. Moreover, the build did little to simplify the complex licensing model of Windows Server 2016 (Standard vs. Datacenter, core-based licensing), which remained a separate administrative headache.
By April 2017, this build had matured to support intensive "Software-Defined Datacenter" (SDDC) initiatives. The primary enhancements in this version include:
The details you've provided suggest a specific point in time for a Windows Server 2016 installation, reflecting a particular update state. Given the specifics of Windows Server 2016's lifecycle, any server still running build 14393.970 as of early 2023 would need to consider updating to a more recent version or ensuring compliance with Microsoft's support policies.
