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- Oct 13, 202690% CONFIDENCEfrom the source
Office 2021 and Windows Server 2012 Lose Microsoft Security Updates
- Office LTSC 2021 reaches end of support on 13 October 2026; afterwards Microsoft provides no technical support, bug fixes or security updates for it[1].
- The same day the third and final Extended Security Updates year for Windows Server 2012 and 2012 R2 ends, and ESUs are no longer available[2][3].
- Microsoft's recommended path for Office is Microsoft 365 Apps, or Office LTSC 2024 for organisations that stay on premises[1].
- Applications keep running after the date, but the software becomes a security and compliance risk[1].
- Other 13 October milestones reported by endoflife.ai: Windows 10's first commercial ESU year expires (consumer ESU runs to 12 October 2027), Windows 11 24H2 Home and Pro servicing ends, and Windows Server 2022 leaves mainstream support[6].
References 686% CONFIDENCEOverall confidence: 86%How well the pin's source and references back up its dates.Weighted average of how firmly 6 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
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- [1]90%learn.microsoft.com/en-us/lifecycle/announcements/office-ltsc-2021-end-of-supportlearn.microsoft.com· Posted Oct 4, 2026· Starts Oct 13, 2026 ✓· 17% of score
Microsoft's[2][3][4][5] lifecycle announcement is titled "Office LTSC 2021 reaching end of support on October 13, 2026", and its Windows Server 2012 ESU page gives October 13, 2026 as the Year 3 ESU end date.
- [2]92%Windows Server 2012 and 2012 R2 reaching end of support - Microsoft Lifecyclelearn.microsoft.com· Added Oct 4, 2026· 17% of score
Microsoft's[1][3][4][5] lifecycle page for the Server 2012 ESU programme, which ends 13 October 2026.
- [3]90%Overview of Extended Security Updates for Windows Server 2012, and 2012 R2learn.microsoft.com· Added Oct 4, 2026· 17% of score
Microsoft[1][2][4][5] documentation: ESUs are available for up to three years, renewable annually until October 13, 2026.
- [4]88%One month until Office LTSC 2021 end of support - Microsoft Tech Communitytechcommunity.microsoft.com· Added Oct 4, 2026· 17% of score
Microsoft's[1][2][3][5] own reminder post ahead of the Office LTSC 2021 end of support.
- [5]80%End of support resources for Office - Microsoft 365 Appslearn.microsoft.com· Added Oct 4, 2026· 17% of score
Microsoft's[1][2][3][4] guidance on moving off Office versions reaching end of support.
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