May 12, 2026—Hotpatch KB5087423 (OS Build 26100.32772)

May 12, 2026—Hotpatch KB5087423 OS Build 26100.32772 This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous innovatio...

May 12, 2026—Hotpatch KB5087424 (OS Build 20348.5074)

May 12, 2026—Hotpatch KB5087424 OS Build 20348.5074 This Hotpatch update for Windows Server 2022 KB5087424 includes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous innovation, see Windo...

November 11, 2025—Hotpatch KB5068966 (OS Build 26100.7092)

November 11, 2025—Hotpatch KB5068966 OS Build 26100.7092 ​​​​​​​This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuou...

September 9, 2025—Hotpatch KB5065306 (OS Build 20348.4106)

September 9, 2025—Hotpatch KB5065306 OS Build 20348.4106 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if...

August 12, 2025—Hotpatch KB5064010 (OS Build 26100.4851)

August 12, 2025—Hotpatch KB5064010 OS Build 26100.4851 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if no...

May 16, 2025—Hotpatch KB5061258 (OS Build 26100.3983) Out-of-band

May 16, 2025—Hotpatch KB5061258 OS Build 26100.3983 Out-of-band For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview, see the update history for Windows 11, version 24H2, and the release notes for hotpatch on...

March 11, 2025—Hotpatch KB5053638 (OS Build 20348.3270)

March 11, 2025—Hotpatch KB5053638 OS Build 20348.3270 Improvements and fixes This security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets...

February 13, 2024—Hotpatch KB5034860 (OS Build 20348.2277)

February 13, 2024—Hotpatch KB5034860 OS Build 20348.2277 Improvements and fixes This security update includes quality improvements. When you install this KB: This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. ...