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.
Understanding the mechanics, security enhancements, and long-term relevance of Windows Server 2016 Build 14393.970 requires looking at both its immediate technical impact in April 2017 and its sustained lifecycle evaluation through 2021. The Genesis of Build 14393.970: The April 2017 Update windows server 2016 build 14393970 enus april 2017 2021
For deployment engineers, the "Windows Server 2016 Build 14393.970 EN-US April 2017" designation represents a highly sought-after configuration for slipstreaming. Slipstreaming is the process of integrating patches directly into the installation media (ISO). Windows Server 2016 followed the Fixed Lifecycle Policy
If you had the original MSDN media from April 2017: windows server 2016 build 14393970 enus april 2017 2021