Microsoft is expanding its Extended Security Update (ESU) program to include additional legacy editions of Windows 10 and Windows Server 2016, giving organisations more time to secure ageing systems as end-of-support dates approach.
The move comes after Windows 10 entered paid extended support following the end of mainstream servicing in October 2025. The ESU program allows businesses to continue receiving critical security patches, but Microsoft is urging customers to plan migrations rather than rely on long-term extensions.
More 2016 Releases Near End of Support
Microsoft confirmed that the following editions will soon reach the end of standard support:
- Windows 10 Enterprise LTSB 2016
- Windows 10 IoT Enterprise 2016 LTSB — support ends October 13, 2026
- Windows Server 2016 — support ends January 12, 2027
After these dates, systems without ESU coverage will stop receiving monthly security fixes, quality updates, and technical assistance, increasing exposure to security risks.
ESU Pricing and Cost Structure
Microsoft has outlined pricing for Windows 10 Enterprise LTSB 2016 under the ESU program.
- Starting cost: $61 per device per year
- Discounted rate: $45 per device per year for organizations using Microsoft Intune or Windows Autopatch
The program runs for three years, but costs double annually, meaning delayed upgrades will become significantly more expensive over time.
In addition, ESU licensing is cumulative. Organizations enrolling in the second or third year must pay for previous years to receive the latest security updates.
Microsoft has not yet released official pricing details for Windows Server 2016 ESU coverage.
Upgrade Guidance for Businesses
The company is advising customers to transition to supported platforms rather than depend on extended coverage:
- Windows 10 Enterprise 2016 LTSB users should move to the latest Windows 10 LTSC release or upgrade to Windows 11
- IoT customers are encouraged to migrate to newer IoT LTSC versions and consult device manufacturers for ESU availability
- Server environments should plan upgrades to Windows Server 2025 before support ends
Security-Only Coverage
Microsoft emphasized that ESU provides security updates only. The program does not include new features, performance improvements, or expanded support services.
The expansion highlights the growing pressure on organizations still running long-term servicing releases from 2016. While ESU offers a temporary safety net, Microsoft’s message remains clear: modernization is the preferred path as the company continues investing in newer Windows platforms.
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