Last updated: 7 November 2026
The main 2027 deadlines are Windows Server 2016 and Windows 10 Enterprise LTSC 2021 on 12 January 2027, System Center 2016, BizTalk Server 2016 and Dynamics NAV 2017 on 11 January 2027, Visual Studio 2017 on 13 April 2027, and SQL Server 2017 on 12 October 2027. Windows 10 paid security updates (year 2) also end on 12 October 2027.
Microsoft end of support dates at a glance
| Product | Date | Status | Action |
|---|---|---|---|
| Windows Server 2016 | 12 January 2027 | Imminent | Upgrade to Windows Server 2025 or move workloads to Azure |
| Windows 10 Enterprise LTSC 2021 | 12 January 2027 | Imminent | Plan replacement or Windows 11 IoT/LTSC |
| System Center 2016, BizTalk 2016, Dynamics NAV 2017 | 11 January 2027 | Imminent | Plan upgrade |
| Visual Studio 2017 | 13 April 2027 | Soon | Move to a supported release |
| SQL Server 2017 | 12 October 2027 | Soon | Upgrade to SQL Server 2022 or later |
| Windows 10 paid ESU, year 2 | 12 October 2027 | Soon | Finish moving to Windows 11 |
| Office 2021 and Office LTSC 2021 | 13 October 2026 | Ended | Move to Microsoft 365 Apps |
| Exchange Server 2019 | 14 October 2025 (ESU ended Oct 2026) | Ended | Exchange Online or Subscription Edition |
| Windows 10 (free updates) | 14 October 2025 | Ended | Upgrade to Windows 11 or buy ESU |
What should I do first?
- List every server, PC and application, with version numbers
- Mark anything already past, or within 12 months of, its end date
- Choose upgrade, replace or paid bridge (ESU) for each, in that order of preference
- Budget now: hardware lead times and migrations take months, not weeks
Our full guide, Microsoft End of Life Dates 2027, covers every date to 2028 with a recommendation for each.
How ABCOM helps
We audit your estate for unsupported software as part of our managed IT service and our free Microsoft Health Check, then plan the upgrades so they fit your budget and do not interrupt work.
Quick answers
What happens when software reaches end of life?
It keeps working but receives no security patches, bug fixes or technical support. That raises your cyber risk, can fail Cyber Essentials, and may affect cyber insurance.
When does Windows Server 2016 reach end of life?
Windows Server 2016 reaches end of extended support on 12 January 2027. Microsoft offers paid Extended Security Updates for up to three years through Azure Arc, but recommends upgrading to Windows Server 2025.
Is Windows 10 still supported?
Not for free. Support ended on 14 October 2025. Paid Extended Security Updates continue to 12 October 2027 for year 2 and 10 October 2028 for year 3, at a price that doubles each year.
Not sure what is out of date in your business? Book a free check and get a clear list.
Related answers and guides
- Microsoft End of Life Dates 2027 (full guide)
- Is Windows 10 still supported?
- When does Windows Server 2016 reach end of life?
- Risks of using unsupported software
- Upgrading to Windows 11
- Cyber Essentials
- All ABCOM FAQs
Sources and further reading
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