Microsoft has issued a timely reminder to organizations regarding the impending end of support for several Windows products that were launched in 2016. The affected software includes Windows Server 2016, Windows 10 Enterprise 2016 LTSB, and Windows IoT Enterprise LTSB 2016. As these products approach the final stages of their lifecycle, organizations relying on them must prepare for the implications.
According to Microsoft’s lifecycle documentation on Microsoft Learn, Windows Server 2016 has been in the extended support phase since January 2022, during which it has not received regular support. This phase allows for security updates only, with no functional enhancements or broader support options. These security updates will be available until January 12, 2027, after which Microsoft will cease to patch any security vulnerabilities associated with this server version.
The situation is more urgent for Windows 10 Enterprise 2016 LTSB and Windows IoT Enterprise LTSB 2016, both of which are set to reach the end of their extended support on October 13, 2026. Initially designed for environments where stability is crucial, these editions have served organizations well, often remaining unchanged in production for extended periods. However, as the end of support approaches, even the most stable systems must now confront the reality of transitioning to newer software.
End of support does not come as a surprise
While Microsoft reassures that systems will continue to operate post-support, it warns that any new vulnerabilities will remain unaddressed. This policy is part of the Fixed Lifecycle Policy, which clearly outlines support timelines at the time of product introduction. For many organizations, this announcement should not come as a shock, although the reality often sees migrations delayed until the last moment.
To assist organizations during this transition, Microsoft offers the Extended Security Updates (ESU) program for these products, allowing critical security updates to remain available for a fee. For Windows 10 Enterprise 2016 LTSB, the costs are already established and are set to increase annually per device. Microsoft has confirmed that ESU will also be available for Windows Server 2016, though specific pricing details are yet to be released. It is important to note that ESU is intended as a temporary solution, not a long-term alternative to migration.
The approach for Windows IoT Enterprise LTSB 2016 is distinct, as extended support will be provided through hardware manufacturers. Given that this edition is closely linked to specific devices, the terms and costs will vary by supplier, potentially adding complexity for organizations navigating this transition.
With this advisory, Microsoft aims to prompt organizations to make proactive decisions. The company underscores in its documentation that continuing to use unsupported software increases risks, particularly in environments where security and compliance are paramount. While Extended Security Updates may offer a temporary reprieve, Microsoft firmly believes that migrating to a newer version of Windows is the only viable long-term solution.
