KB5075902: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: February 10, 2026

KB5075902: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: February 10, 2026 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these...

January 29, 2026—KB5074105 (OS Builds 26200.7705 and 26100.7705) Preview

January 29, 2026—KB5074105 OS Builds 26200.7705 and 26100.7705 Preview ​​​​​This non-security update for Windows 11, version 25H2 and 24H2 KB5074105, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview...

January 29, 2026-KB5074831 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2

January 29, 2026-KB5074831 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 Release Date: January 29, 2026 Version: .NET Framework 3.5 and 4.8.1 The January 29, 2026 update for Windows 11, version 24H2 and Microsoft server operating system version 24H2...

January 29, 2026-KB5074828 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2

January 29, 2026-KB5074828 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 Release Date: January 29, 2026 Version: .NET Framework 3.5 and 4.8.1 The January 29, 2026 update for Windows 11, version 25H2 includes security and cumulative reliability improvement...

Description of the security update for Office 2016: January 26, 2026 (KB5002713)

Description of the security update for Office 2016: January 26, 2026 KB5002713 Summary This security update resolves a Microsoft Word security feature bypass vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2026-21509. Note: To apply thi...

January 24, 2026—KB5078129 (OS Builds 19045.6812 and 19044.6812) Out-of-band

January 24, 2026—KB5078129 OS Builds 19045.6812 and 19044.6812 Out-of-band Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed...

January 24, 2026—KB5078131 (OS Build 17763.8281) Out-of-band

January 24, 2026—KB5078131 OS Build 17763.8281 Out-of-band Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business device...

January 24, 2026—KB5078136 (OS Build 20348.4651) Out-of-band

January 24, 2026—KB5078136 OS Build 20348.4651 Out-of-band This out-of-band update for Windows Server 2022 KB5078136 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...

January 24, 2026—KB5078132 (OS Build 22631.6495) Out-of-band

January 24, 2026—KB5078132 OS Build 22631.6495 Out-of-band ​​​​​​​​​​​​​​​​​​This out-of-band update for Windows 11, version 23H2 KB5078132 is cumulative. It includes updates from previous security releases, along with an additional fix. To learn more about differences between security updates,...

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...

January 24, 2026—KB5078135 (OS Build 26100.32236) Out-of-band

January 24, 2026—KB5078135 OS Build 26100.32236 Out-of-band ​​​​This out-of-band update for Windows Server 2025 KB5078135 is cumulative. It includes updates from previous security releases, along with an additional fix. To learn more about differences between security updates, optional non-securi...

January 24, 2026—KB5078127 (OS Builds 26200.7628 and 26100.7628) Out-of-band

January 24, 2026—KB5078127 OS Builds 26200.7628 and 26100.7628 Out-of-band ​​​​This out-of-band update for Windows 11, version 25H2 and 24H2 KB5078127 is cumulative. It includes updates from previous security and non-security releases, along with an additional fix. To learn more about differences...

January 17, 2026—KB5077796 (OS Builds 19045.6811 and 19044.6811) Out-of-band

January 17, 2026—KB5077796 OS Builds 19045.6811 and 19044.6811 Out-of-band Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed...

January 17, 2026—KB5077795 (OS Build 17763.8280) Out-of-band

January 17, 2026—KB5077795 OS Build 17763.8280 Out-of-band Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business device...

January 17, 2026—KB5077744 (OS Builds 26200.7627 and 26100.7627) Out-of-band

January 17, 2026—KB5077744 OS Builds 26200.7627 and 26100.7627 Out-of-band ​​​​This out-of-band update for Windows 11, version 25H2 and 24H2 KB5077744 is cumulative. It includes updates from previous security and non-security releases, along with an additional fix. To learn more about differences...

January 17, 2026—KB5077792 (OS Build 25398.2096) Out-of-band

January 17, 2026—KB5077792 OS Build 25398.2096 Out-of-band ​​​​This out-of-band update for Windows Server 23H2 KB5077792 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...

January 17, 2026—KB5077793 (OS Build 26100.32234) Out-of-band

January 17, 2026—KB5077793 OS Build 26100.32234 Out-of-band ​​​​This out-of-band update for Windows Server 2025 KB5077793 is cumulative. It includes updates from previous security releases, along with an additional fix. To learn more about differences between security updates, optional non-securi...

January 17, 2026—KB5077797 (OS Build 22631.6494) Out-of-band

January 17, 2026—KB5077797 OS Build 22631.6494 Out-of-band ​​​​This out-of-band update for Windows 11, version 23H2 KB5077797 is cumulative. It includes updates from previous security releases, along with an additional fix. To learn more about differences between security updates, optional...

January 17, 2026—KB5077800 (OS Build 20348.4650) Out-of-band

January 17, 2026—KB5077800 OS Build 20348.4650 Out-of-band ​​This out-of-band update for Windows Server 2022 KB5077800 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...

January 13, 2026—KB5073698 (Monthly Rollup)

January 13, 2026—KB5073698 Monthly Rollup Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012. For a successful installation, please make sure all Subset of endpoints for ESU only...

January 13, 2026—KB5073700 (Security-only update)

January 13, 2026—KB5073700 Security-only update Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the...

January 13, 2026—KB5073699 (Security-only update)

January 13, 2026—KB5073699 Security-only update Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the...

January 13, 2026—KB5073697 (Monthly Rollup)

January 13, 2026—KB5073697 Monthly Rollup Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

January 13, 2026—KB5073696 (Monthly Rollup)

January 13, 2026—KB5073696 Monthly Rollup Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012 R2. For a successful installation, please make sure all Subset of endpoints for ESU on...

January 13, 2026—KB5073724 (OS Builds 19045.6809 and 19044.6809)

January 13, 2026—KB5073724 OS Builds 19045.6809 and 19044.6809 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business...

January 13, 2026—KB5073723 (OS Build 17763.8276)

January 13, 2026—KB5073723 OS Build 17763.8276 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the pa...

KB5073177 - Description of the security update for SQL Server 2025 GDR: January 13, 2026

KB5073177 - Description of the security update for SQL Server 2025 GDR: January 13, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains...

KB5073031 - Description of the security update for SQL Server 2022 GDR: January 13, 2026

KB5073031 - Description of the security update for SQL Server 2022 GDR: January 13, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains...

Description of the security update for SharePoint Server 2019 Language Pack: January 13, 2026 (KB5002823)

Description of the security update for SharePoint Server 2019 Language Pack: January 13, 2026 KB5002823 Summary Important: If you're running 2013-type workflows, you mustinstall the August 2025 update for SharePoint Workflow Manager to your farm before you install this cumulative update.​​​​​​​ I...

Description of the security update for SharePoint Server Subscription Edition: January 13, 2026 (KB5002822)

Description of the security update for SharePoint Server Subscription Edition: January 13, 2026 KB5002822 Summary Important: If you're currently running SharePoint Workflow Manager, you must install SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If...

Description of the security update for Office Online Server: January 13, 2026 (KB5002824)

Description of the security update for Office Online Server: January 13, 2026 KB5002824 Summary This security update resolves Microsoft Excel Remote Code Execution vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common Vulnerabilities and...

January 13, 2026—KB5073450 (OS Build 25398.2092)

January 13, 2026—KB5073450 OS Build 25398.2092 This cumulative update for Windows Server, version 23H2 KB5073450, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security...

January 13, 2026—KB5073455 (OS Build 22631.6491)

January 13, 2026—KB5073455 OS Build 22631.6491 ​​​​​This cumulative update for Windows 11, version 23H2 KB5073455, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security...

January 13, 2026—KB5073695 (Monthly Rollup)

January 13, 2026—KB5073695 Monthly Rollup Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

January 13, 2026—KB5073722 (OS Build 14393.8783)

January 13, 2026—KB5073722 OS Build 14393.8783 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the pa...

January 13, 2026—KB5073379 (OS Build 26100.32230)

January 13, 2026—KB5073379 OS Build 26100.32230 ​​​​​This cumulative update for Windows Server 2025 KB5073379, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates,...

January 13, 2026—KB5074109 (OS Builds 26200.7623 and 26100.7623)

January 13, 2026—KB5074109 OS Builds 26200.7623 and 26100.7623 ​​​​​This cumulative update for Windows 11, version 25H2 and 24H2 KB5074109, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about...

Description of the security update for SharePoint Server 2016 Language Pack: January 13, 2026 (KB5002827)

Description of the security update for SharePoint Server 2016 Language Pack: January 13, 2026 KB5002827 Summary Important: If you're running Microsoft SharePoint Server 2013-type workflows, you must install the August 2025 update for SharePoint Workflow Manager to your farm before you install thi...

Description of the security update for Office 2016: January 13, 2026 (KB5002826)

Description of the security update for Office 2016: January 13, 2026 KB5002826 Summary This security update resolves a Microsoft Office Remote Code Execution vulnerability and Microsoft Office Click-To-Run Elevation of Privilege vulnerability. To learn more about the vulnerabilities, see the...

End of support for Office 2016 and Office 2019

None None...

Description of the security update for SharePoint Server 2016: January 13, 2026 (KB5002828)

Description of the security update for SharePoint Server 2016: January 13, 2026 KB5002828 Summary Important: If you're currently running SharePoint Workflow Manager, you must install the SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If you're...

Description of the security update for Excel 2016: January 13, 2026 (KB5002831)

Description of the security update for Excel 2016: January 13, 2026 KB5002831 Summary This security update resolves Microsoft Excel Remote Code Execution Vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common Vulnerabilities and Exposures...

KB5072936 - Description of the security update for SQL Server 2022 CU22: January 13, 2026

KB5072936 - Description of the security update for SQL Server 2022 CU22: January 13, 2026 Summary Improvements and fixes included in this update How to obtain and install the update How to obtain or download the latest cumulative update package for Linux More information File information...

Description of the security update for SharePoint Server 2019: January 13, 2026 (KB5002825)

Description of the security update for SharePoint Server 2019: January 13, 2026 KB5002825 Summary Important: If you're currently running SharePoint Workflow Manager, you must install the SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If you're...

January 13, 2026—KB5073457 (OS Build 20348.4648)

January 13, 2026—KB5073457 OS Build 20348.4648 This cumulative update for Windows Server 2022 KB5073457, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates,...

.NET 10.0 Update - January 13, 2026

.NET 10.0 Update - January 13, 2026 .NET 10.0 has been refreshed with the latest update as of January 13, 2026. This update contains non-security fixes. See the release notes for details about updated packages..NET 10.0 servicing updates are upgrades. The latest servicing update for 10.0 will...

.NET 9.0 Update - January 13, 2026

.NET 9.0 Update - January 13, 2026 .NET 9.0 has been refreshed with the latest update as of January 13, 2026. This update contains non-security fixes. See the release notes for details about updated packages..NET 9.0 servicing updates are upgrades. The latest servicing update for 9.0 will remove...

.NET 8.0 Update - January 13, 2026

.NET 8.0 Update - January 13, 2026 .NET 8.0 has been refreshed with the latest update as of January 13, 2026. This update contains non-security fixes. See the release notes for details about updated packages..NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove...

KB5073447: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: January 13, 2026

KB5073447: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: January 13, 2026 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificat...

December 18, 2025—KB5074979 (Monthly Rollup) Out-of-band

December 18, 2025—KB5074979 Monthly Rollup Out-of-band Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices fo...