Windows 10 end-of-support upgrade and ESU guidance
Advisory/Mitigation
Summary
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Microsoft ended Windows 10 support on October 14, 2025, leaving devices without new security updates and increasing the risk of viruses and malware if users stay on the platform. The company is directing users to upgrade to Windows 11, move to Windows 365, or enroll in the Extended Security Updates (ESU) program to keep protections in place. Microsoft also said some users can get ESU for free, including certain EEA customers who enroll with a Microsoft account.
Related Happenings
Microsoft Windows 11 KB5089549 cumulative update
Security Patch Release
First: 18.05.2026 11:33
Last: 18.05.2026 11:33
Sources 1
About this happening:
Microsoft's **KB5089549** **Windows 11** security update is failing to install on some systems, forcing affected devices to roll back during reboot. The problem is tied to a nearl...
Microsoft Windows 11 KB5089549 cumulative update
Security Patch ReleaseAbout this happening: Microsoft's **KB5089549** **Windows 11** security update is failing to install on some systems, forcing affected devices to roll back during reboot. The problem is tied to a nearl...
Microsoft May 2026 Patch Tuesday release
Security Patch Release
First: 13.05.2026 13:36
Last: 13.05.2026 13:36
Sources 1
About this happening:
Microsoft's **May 13, 2026 Patch Tuesday** release fixed **138 vulnerabilities** across its product portfolio, including **Windows**, **Azure**, and **Edge**. None of the flaws we...
Microsoft May 2026 Patch Tuesday release
Security Patch ReleaseAbout this happening: Microsoft's **May 13, 2026 Patch Tuesday** release fixed **138 vulnerabilities** across its product portfolio, including **Windows**, **Azure**, and **Edge**. None of the flaws we...
Windows 10 KB5087544 extended security update
Security Patch Release
First: 12.05.2026 21:58
Last: 12.05.2026 21:58
Sources 1
About this happening:
**Microsoft** released **Windows 10 KB5087544** for **Windows 10 ESU/LTSC systems**, addressing **May 2026 Patch Tuesday vulnerabilities** and a **Remote Desktop warnings** issue....
Windows 10 KB5087544 extended security update
Security Patch ReleaseAbout this happening: **Microsoft** released **Windows 10 KB5087544** for **Windows 10 ESU/LTSC systems**, addressing **May 2026 Patch Tuesday vulnerabilities** and a **Remote Desktop warnings** issue....
Microsoft Windows 11 mandatory Patch Tuesday updates (KB5089549, KB5087420)
Security Patch Release
First: 12.05.2026 21:09
Last: 12.05.2026 21:09
Sources 1
About this happening:
Microsoft released **mandatory Windows 11 cumulative updates** for **KB5089549** and **KB5087420**, delivering the **May 2026 Patch Tuesday** fixes for **120 vulnerabilities** acr...
Microsoft Windows 11 mandatory Patch Tuesday updates (KB5089549, KB5087420)
Security Patch ReleaseAbout this happening: Microsoft released **mandatory Windows 11 cumulative updates** for **KB5089549** and **KB5087420**, delivering the **May 2026 Patch Tuesday** fixes for **120 vulnerabilities** acr...
Windows 10 KB5082200 April 2026 Patch Tuesday security update
Security Patch Release
First: 14.04.2026 21:09
Last: 14.04.2026 21:09
Sources 1
About this happening:
Microsoft released **Windows 10 KB5082200** for **April 2026 Patch Tuesday**, closing **167 vulnerabilities** including **two zero-days** on supported **Windows 10** systems. The...
Windows 10 KB5082200 April 2026 Patch Tuesday security update
Security Patch ReleaseAbout this happening: Microsoft released **Windows 10 KB5082200** for **April 2026 Patch Tuesday**, closing **167 vulnerabilities** including **two zero-days** on supported **Windows 10** systems. The...
Timeline
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14.10.2025 17:54 2 articles · 7mo ago
Windows 10 reaches end of support
Initial DisclosureWindows 10 reached end of support on October 14, 2025, ending technical assistance, feature updates, and security updates for the operating system. PCs that remain on Windows 10 can continue to function, but they become more exposed to viruses, malware, and attacks without migration to a supported Windows version.
Show sources
- Microsoft warns that Windows 10 reaches end of support today — www.bleepingcomputer.com — 14.10.2025 17:54
- Two New Windows Zero-Days Exploited in the Wild — One Affects Every Version Ever Shipped — thehackernews.com — 15.10.2025 12:23
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14.10.2025 17:54 2 articles · 7mo ago
Microsoft outlines ESU, EEA, and LTSC options for Windows 10 users
Mitigation Patch UpdateMicrosoft published guidance that directs Windows 10 users to upgrade to Windows 11, migrate to Windows 365, or enroll in the Extended Security Updates (ESU) program to keep receiving protection temporarily. The guidance says ESU costs $30 for home users and $61 per device per year for enterprise customers, can be extended for up to 3 years, can be free for some home users through Microsoft Rewards points or Windows Backup, and is free for individual customers in the European Economic Area who enroll with a Microsoft account after pressure from Euroconsumers. The same guidance also points to Long-Term Servicing Channel (LTSC) releases, including Windows 10 Enterprise LTSC 2021 and Windows 10 Enterprise LTSC 2019, as alternatives that keep receiving updates on their own schedules.
Show sources
- Microsoft warns that Windows 10 reaches end of support today — www.bleepingcomputer.com — 14.10.2025 17:54
- Patch Tuesday, October 2025 ‘End of 10’ Edition — krebsonsecurity.com — 15.10.2025 01:57