Windows Server 2012 ESU Program Ends October 13, 2026, Leaving No Further Support

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Microsoft's Extended Security Updates (ESU) program for Windows Server 2012 and 2012 R2 will permanently expire on October 13, 2026, with no fourth year available. After that date, affected systems will receive no security patches — even for actively exploited vulnerabilities — and will lose eligibility for Microsoft support. Organizations still running these servers typically do so due to legacy applications, line-of-business tools, or hardware dependencies rather than neglect. Workloads that can be migrated to Windows Server 2022/2025 or lifted to Azure are advised to act before the deadline, as Azure hosting offers free ESU coverage as a transitional option. The October 13 cutoff is part of a broader wave of end-of-support deadlines in late 2026, including SQL Server 2016, .NET 8 and 9, and PostgreSQL 14.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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