A quick heads-up: There’s a typo in your build string (14393970 should be 14393.970). Below, we break down what this specific version represents and why the “2021” mention matters.
For Windows Server 2016, the April 2017 cumulative update was KB4015217 (OS Build 14393.970).
Release date: April 11, 2017
| Aspect | Verdict | |--------|---------| | Build 14393.970 (April 2017) | ✅ Historical reference only | | Using it in production (2025) | ❌ Extremely high risk | | Using it in an offline lab | ⚠️ Possible, but update immediately | | The “2021” label | Likely a repack date – check file hashes |
Bottom line: Unless you are researching a legacy bug from 2017, skip this build. Download a current, patched Server 2016 ISO instead.
Have an old ISO you need help identifying? Leave the file name in the comments.
Windows Server 2016 Build 14393.970 refers to a specific system state achieved after applying the March 22, 2017 cumulative update ( The references you found likely point to a custom "Gen2" ISO release
or an "all-in-one" (AIO) installer created by third-party collectors (such as Generation2). These versions often bundle the original 2016 installation media with cumulative updates released through 2021 to ensure a more secure deployment out of the box. Key Technical Details Original Build: Windows Server 2016 was released in 2016 with base build Build 14393.970:
Specifically indicates the server has been patched with the March/April 2017 updates. 2021 Context:
While the build version is from 2017, the "2021" tag in file names usually signifies that the installer includes additional security patches or administrative tools updated as late as 2021. Editions Typically Included:
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:
Beyond build 14393.970, many subsequent cumulative updates have been released. For example, by late 2024, the stable build version had reached 14393.7428. Important Considerations for Deployment
Deploy Storage Spaces Direct on Windows Server - Microsoft Learn
Windows Server 2016 Build 14393.970 refers to the operating system version associated with , which was released on March 22, 2017
. This specific build did not introduce new operating system features but focused on quality improvements and bug fixes, such as resolving issues with the Windows Store and CRM 2011 on Internet Explorer 11. Microsoft Support
If you are looking to "create" or enable a feature within this environment, you typically use the Server Manager PowerShell How to Enable a Feature in Windows Server 2016 To activate roles and features on this build: Open Server Manager : Run as Administrator. Add Roles and Features Add Roles and Features Wizard Steps
: Follow the prompts to select your server and check the specific feature you wish to install (e.g., .NET Framework 3.5 Containers and restart if required. Core Features of Windows Server 2016 (Build 14393) This build belongs to the Long-Term Servicing Channel (LTSC) windows server 2016 build 14393970 enus april 2017 2021
version 1607. Key features available for activation include: Microsoft Learn Compute & Virtualization : Hyper-V support for Nano Server , hot add/remove for memory/NICs, and Windows Server Containers Storage Spaces Direct (S2D) Storage Replica for disaster recovery. Shielded Virtual Machines (using BitLocker encryption), Host Guardian Service Just Enough Administration (JEA) Management
: PowerShell Desired State Configuration (DSC) and Windows Management Framework 5.0. Context for 2021 and Beyond
This guide covers Windows Server 2016 Build 14393.970 , a specific maintenance release from March 22, 2017 , delivered via
. This build is often found in older integrated ISO images (marked "April 2017") used for deployments during the 2017–2021 period. Microsoft Support Build Overview Release Date: March 22, 2017. Update ID: Windows Server 2016 (Version 1607). Support Status: Mainstream support ended January 11, 2022; Extended support continues until January 12, 2027 Microsoft Support Key Features and Fixes (Build 14393.970) Reliability Improvements:
Addressed issues with Hyper-V, active directory, and the kernel. Network Fixes:
Resolved issues where the DHCP server might lose its lease database. Storage Improvements:
Fixed a bug where Storage Spaces Direct (S2D) might stop responding. Security Updates:
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.
Note: Allocating at least 800 MB is recommended for stable installation in virtual environments Disk Space: Minimum 32 GB. Post-Deployment Recommendations
Since this build is from 2017, it lacks critical security updates released after that date. Microsoft Update Catalog
This specific build corresponds to a version of Windows Server 2016 (version 1607) updated with the April 2017 cumulative updates, which remained a foundational release through 2021. Technical Overview OS Build: 14393.970 Release Date: April 11, 2017 (KB4015217)
Base Version: Windows Server 2016 Standard / Datacenter (LTSC) Architecture: x64 Language: en-US (English - United States) Key Features & Context (2017–2021)
By April 2017, Build 14393.970 addressed critical stability issues and security vulnerabilities. Throughout its lifecycle leading up to 2021, this version was widely used for:
Hyper-V Isolation: Enhancing virtual machine security through shielded VMs.
Windows Containers: Integrating Docker support directly into the server environment.
Nano Server: A minimal footprint installation option for cloud-native applications. Navigating Legacy Builds: A Look at Windows Server
Storage Spaces Direct: Enabling highly available storage using local drives. Security & Maintenance
The April 2017 update (KB4015217) was significant as it provided fixes for the Windows kernel, scripting engine, and graphics component. For administrators maintaining this build through 2021:
Lifecycle: 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.
Servicing: To move past build 14393.970, users typically applied the latest cumulative updates (LCU) via WSUS or Windows Update to reach the final versions of the 14393 branch. Legacy Importance
Many enterprise environments standardized on the 2017-era builds because of their stability compared to earlier 2016 releases. By 2021, these systems were often being migrated to Windows Server 2019 or 2022 to take advantage of improved hybrid cloud capabilities with Azure.
Windows Server 2016 OS Build 14393.970 refers to a specific release state of the operating system reached via the cumulative update KB4016635. Release Timeline & Lifecycle
Initial Release: Windows Server 2016 was generally released on October 12, 2016, as Version 1607 (Build 14393.0).
March/April 2017 (Build 14393.970): This build was achieved through the March 22, 2017, update (KB4016635). It was shortly followed by the April 11, 2017 update (KB4015217), which further bumped the build number to 14393.1066.
January 2021 Update: By early 2021, cumulative updates like KB4598243 advanced the OS to Build 14393.4169.
Support Status: Mainstream support for Windows Server 2016 ended on January 11, 2022. It is currently in Extended Support until January 12, 2027. Key Build Information
Windows Server 2016 Build 14393.970: A Comprehensive Review of the April 2017 Update
In April 2017, Microsoft released a significant update for Windows Server 2016, bringing the build number to 14393.970. This update, also known as the "Creators Update," aimed to enhance the overall security, performance, and functionality of the server operating system. In this article, we will delve into the details of Windows Server 2016 build 14393.970, exploring its key features, improvements, and implications for IT professionals and organizations.
Background and Context
Windows Server 2016 was initially released in October 2016, marking a major milestone in Microsoft's server operating system offerings. The Creators Update, released in April 2017, built upon the foundation established by the initial release, addressing user feedback, and incorporating new features to improve the overall server experience.
Key Features and Improvements
The April 2017 update for Windows Server 2016, build 14393.970, introduced several notable features and improvements, including: Have an old ISO you need help identifying
Technical Details
For IT professionals and administrators, the following technical details are relevant:
Installation and Deployment
The April 2017 update for Windows Server 2016 can be installed using various methods, including:
Implications and Recommendations
The April 2017 update for Windows Server 2016 has significant implications for IT professionals and organizations, including:
Conclusion
In conclusion, the April 2017 update for Windows Server 2016, build 14393.970, represents a significant milestone in the evolution of the server operating system. With its enhanced security features, improved performance, and new features for containers and management, this update provides IT professionals and organizations with a more robust, efficient, and secure platform for their server infrastructure needs.
2021 and Beyond
As of 2021, Windows Server 2016 is still a widely used and supported server operating system. Although Microsoft has released newer versions, such as Windows Server 2019 and Windows Server 2022, the April 2017 update remains relevant for organizations that continue to rely on Windows Server 2016.
In summary, the April 2017 update for Windows Server 2016, build 14393.970, is a comprehensive and important update that addresses various aspects of the server operating system. Its features, improvements, and implications make it a valuable resource for IT professionals and organizations seeking to enhance their server infrastructure.
Keywords: Windows Server 2016, build 14393.970, April 2017 update, Creators Update, security, performance, containers, management, hybrid scenarios, Azure AD, Microsoft Update Catalog, System Center Configuration Manager.
(Note: The number "14393970" in your string is likely a typo for the actual build number 14393.1944 or a combination of the KB number and build number. The build 14393.970 actually corresponds to the April 2017 update, but the string explicitly mentions "April 2017 2021," confirming the intent is the April 2021 cumulative update.)
Here are the key features and highlights of this specific release:
Cumulative updates are cumulative. Installing the April 2021 CU (KB5001342, build 14393.4350) would succeed if you had at least April 2017’s SSU. The process: