Windows Server 2016 Build 14393970 Enus April 2017 2021 May 2026
Windows Server 2016, specifically Build 14393.970, represents a critical point in the operating system's early maintenance phase. This specific build, released in March 2017 via KB4016635 , solidified the "Anniversary Update" foundation for enterprise environments. Overview of Build 14393.970
- Fixed a crash in
lsass.exe (Local Security Authority Subsystem Service) when using smart card logins.
- Resolved a race condition in Storage Spaces Direct (S2D) causing volume enumeration delays.
- Addressed Cluster Shared Volumes (CSV) becoming unavailable during backup operations.
- Improved time accuracy for Hyper-V guests running Linux Integration Services (LIS).
Part 2: Security Fixes in April 2017 (Critical)
Build 14393.970 addressed three publicly disclosed zero-day vulnerabilities and over two dozen remote code execution (RCE) flaws. windows server 2016 build 14393970 enus april 2017 2021
Hyper-V Stability: Addressed a critical issue where virtual machines would fail during high I/O (Input/Output) scenarios . Windows Server 2016, specifically Build 14393
Resolved issues where the DHCP server might lose its lease database. Storage Improvements: Fixed a crash in lsass
If you are still running Build 14393.970, your system is significantly outdated and vulnerable to security risks discovered after 2017. Mainstream Support Ended: January 11, 2022. Extended Support Ends: January 12, 2027.
These ISOs often contain Standard, Standard Core, Datacenter, and Datacenter Core editions. Life Cycle & Support Mainstream Support: January 11, 2022 Extended Support: Remains active until January 12, 2027 Maintenance:
Included patches for Microsoft Edge, Internet Explorer, and Windows Kernel-mode drivers. Microsoft Support Deployment Requirements Processor: 1.4 GHz 64-bit with support for NX, DEP, and LAHF/SAHF. for Server Core. for Server with Desktop Experience.