March 25, 2024—KB5037425 (OS Build 17763.5579) Out-of-band

March 25, 2024—KB5037425 OS Build 17763.5579 Out-of-band 11/17/20 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 10, version 1809, see its update history page. Highlights This...

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...

KB5037426: Update to address a known issue that affects LSASS in Windows Server 2012 R2

KB5037426: Update to address a known issue that affects LSASS in Windows Server 2012 R2 Summary This update addresses a known issue that affects the Local Security Authority Subsystem Service LSASS. It might leak memory on domain controllers DCs. This issue occurs after you install KB5035885 Marc...

March 22, 2024—KB5037422 (OS Build 20348.2342) Out-of-band

March 22, 2024—KB5037422 OS Build 20348.2342 Out-of-band 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 2022, see its update history page. Note Follow @WindowsUpdate to fi...

March 12, 2024—KB5035854 (OS Build 22000.2836)

March 12, 2024—KB5035854 OS Build 22000.2836 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 11, version 21H2, see its update history page.Note Follow @WindowsUpdate to find out...

March 12, 2024—KB5035849 (OS Build 17763.5576) - EXPIRED

March 12, 2024—KB5035849 OS Build 17763.5576 - 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. ​​​​​​​ NEW 3/25/24...

March 12, 2024—KB5035933 (Security-only update)

March 12, 2024—KB5035933 Security-only update Reminder 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 Security Updates...

March 12, 2024—KB5035855 (OS Build 14393.6796) - EXPIRED

March 12, 2024—KB5035855 OS Build 14393.6796 - 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. --- NEW 3/22/24...

March 12, 2024—KB5035856 (OS Build 25398.763)

March 12, 2024—KB5035856 OS Build 25398.763 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...

March 12, 2024— Hotpatch KB5035959 (OS Build 20348.2333)

March 12, 2024— Hotpatch KB5035959 OS Build 20348.2333 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. If...

KB5035962: Servicing stack update for Windows 10, version 1607 and Server 2016: March 12, 2024

KB5035962: Servicing stack update for Windows 10, version 1607 and Server 2016: March 12, 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,...

KB5035969: Servicing stack update for Windows Server 2012: March 12, 2024

KB5035969: Servicing stack update for Windows Server 2012: March 12, 2024 REMINDER 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 the final date on...

November 14, 2023—KB5032192 (OS Build 22000.2600)

November 14, 2023—KB5032192 OS Build 22000.2600 9/26/23 IMPORTANT As of September 26, 2023, there are no more optional, non-security preview releases for Windows 11, version 21H2. Only cumulative monthly security updates will continue for the supported versions of Windows 11, version 21H2...

November 14, 2023—KB5032189 (OS Builds 19044.3693 and 19045.3693) - EXPIRED

November 14, 2023—KB5032189 OS Builds 19044.3693 and 19045.3693 - 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. --...

November 14, 2023—KB5032197 (OS Build 14393.6452) - EXPIRED

November 14, 2023—KB5032197 OS Build 14393.6452 - 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...

February 13, 2024—KB5034809 (Security-only update)

February 13, 2024—KB5034809 Security-only update REMINDER 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 that enables you...

February 13, 2024—KB5034763 (OS Builds 19044.4046 and 19045.4046) - EXPIRED

February 13, 2024—KB5034763 OS Builds 19044.4046 and 19045.4046 - 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. --...

February 13, 2024—KB5034766 (OS Build 22000.2777)

February 13, 2024—KB5034766 OS Build 22000.2777 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 11, version 21H2, see its update history page.Note Follow @WindowsUpdate to find ou...

KB5034867: Servicing stack update for Windows Server 2008 SP2: February 13, 2024

KB5034867: Servicing stack update for Windows Server 2008 SP2: February 13, 2024 REMINDER 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...

KB5034868: Servicing stack update for Windows Server 2012: February 13, 2024

KB5034868: Servicing stack update for Windows Server 2012: February 13, 2024 REMINDER 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 the final date...