January 24, 2026—KB5078133 (OS Build 25398.2097) Out-of-band

January 24, 2026—KB5078133 OS Build 25398.2097 Out-of-band ​​​​This out-of-band update for Windows Server 23H2 KB5078133 is cumulative. It includes updates from previous security, along with an additional fix. To learn more about differences between security updates, optional non-security preview...

May 13, 2025—Hotpatch KB5058500 (OS Build 20348.3630)

May 13, 2025—Hotpatch KB5058500 OS Build 20348.3630 Improvements and fixes This security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. The bold text within the brackets indicates the item or area of the change. Thi...

June 11, 2025—KB5063060 (OS Build 26100.4351) Out-of-band

June 11, 2025—KB5063060 OS Build 26100.4351 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 page for Windows 11, version 24H2.Follow @WindowsUpdate to find out when new...

March 11, 2025—KB5053599 (OS Build 25398.1486)

March 11, 2025—KB5053599 OS Build 25398.1486 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows Server, version 23H2, see its update history page. Improvements This security update includes quality...

October 8, 2024—KB5044286 (OS Build 10240.20796) - EXPIRED

October 8, 2024—KB5044286 OS Build 10240.20796 - EXPIRED EXPIRATION NOTICEIMPORTANT As of January 27, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- 12/8/20 For...

October 8, 2024—KB5044288 (OS Build 25398.1189)

October 8, 2024—KB5044288 OS Build 25398.1189 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update history page. Improvements This security update...

October 8, 2024—KB5044320 (Monthly Rollup)

October 8, 2024—KB5044320 Monthly Rollup End of support information Windows Server 2008 SP2 Extended Security Updates ESU third and final year ended on January 10, 2023. Additionally, Extended Security Updates on Azure only support ended on January 9, 2024. For more information, see Extended...

July 9, 2024—KB5040438 (OS Build 25398.1009)

July 9, 2024—KB5040438 OS Build 25398.1009 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update history page. Improvements This security update...

KB5041576: Servicing stack update for Windows 10, version 1607 and Server 2016: August 13, 2024

KB5041576: Servicing stack update for Windows 10, version 1607 and Server 2016: August 13, 2024 End of support information Windows 10, version 1607 Mobile and Mobile Enterprise editions reached the end of support EOS on October 9, 2018. These editions will no longer be offered servicing stack...

KB5041589: Servicing stack update for Windows Server 2012: August 13, 2024

KB5041589: Servicing stack update for Windows Server 2012: August 13, 2024 End of support information Windows Server 2012 reached end of support EOS on October 10, 2023. Extended Security Updates ESUs are available for purchase and will continue for three years, renewable on an annual basis, unti...

KB5040566: Servicing stack update for Windows 10: July 9, 2024

KB5040566: Servicing stack update for Windows 10: July 9, 2024 End of support information Windows 10, version 1507 reached the end of support EOS on May 9, 2017 for devices running the Pro, Home, Enterprise, Education, and Enterprise LoT editions. After April 9, 2019, these devices are no longer...

KB5040562: Servicing stack update for Windows 10, version 1607 and Server 2016: July 9, 2024

KB5040562: Servicing stack update for Windows 10, version 1607 and Server 2016: July 9, 2024 End of support information Windows 10, version 1607 Mobile and Mobile Enterprise editions reached the end of support EOS on October 9, 2018. These editions will no longer be offered servicing stack update...

KB5040570: Servicing stack update for Windows Server 2012: July 9, 2024

KB5040570: Servicing stack update for Windows Server 2012: July 9, 2024 End of support information Windows Server 2012 reached end of support EOS on October 10, 2023. Extended Security Updates ESUs are available for purchase and will continue for three years, renewable on an annual basis, until t...

June 11, 2024—KB5039274 (Security-only update)

June 11, 2024—KB5039274 Security-only update End of support information As of January 10, 2023, Microsoft no longer provides security updates or technical support for Windows 7 Service Pack 1 SP1. We recommend that you upgrade to a supported version of Windows. For more information, see Update th...

June 11, 2024—KB5039266 (Security-only update)

June 11, 2024—KB5039266 Security-only update End of support information Windows Server 2008 SP2 Extended Security Updates ESU third and final year ended on January 10, 2023. Additionally, Extended Security Updates on Azure only support ended on January 9, 2024. For more information, see Extended...

KB5039334: Servicing stack update for Windows 10, version 1607 and Server 2016: June 11, 2024

KB5039334: Servicing stack update for Windows 10, version 1607 and Server 2016: June 11, 2024 End of support information Windows 10, version 1607 Mobile and Mobile Enterprise editions reached the end of support EOS on October 9, 2018. These editions will no longer be offered servicing stack...

May 14, 2024—KB5037781 (OS Build 25398.887)

May 14, 2024—KB5037781 OS Build 25398.887 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update history page. Improvements This security update...

KB5037016: Servicing stack update for Windows 10, version 1607 and Server 2016: April 9, 2024

KB5037016: Servicing stack update for Windows 10, version 1607 and Server 2016: April 9, 2024 REMINDER Windows 10, version 1607 Mobile and Mobile Enterprise editions reached the end of support EOS on October 9, 2018. These editions will no longer be offered servicing stack updates. Windows 10,...

KB5037019: Servicing stack update for Windows 10: April 9, 2024

KB5037019: Servicing stack update for Windows 10: April 9, 2024 REMINDER Windows 10, version 1507 reached the end of support EOS on May 9, 2017 for devices running the Pro, Home, Enterprise, Education, and Enterprise LoT editions. After April 9, 2019, these devices are no longer offered servicing...

January 9, 2024—KB5034119 (OS Build 14393.6614) - EXPIRED

January 9, 2024—KB5034119 OS Build 14393.6614 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- 11/19/20 For...