June 9, 2026—KB5094042 (Monthly Rollup)

June 9, 2026—KB5094042 Monthly Rollup Applies To Windows Server 2012 ESU 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...

April 14, 2026—KB5082123 (OS Build 17763.8644)

April 14, 2026—KB5082123 OS Build 17763.8644 Applies To Windows Server 2019 Win 10 Ent LTSC 2019 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and...

April 14, 2026—KB5082198 (OS Build 14393.9060)

April 14, 2026—KB5082198 OS Build 14393.9060 Applies To Windows Server 2016, all editions Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect...

April 14, 2026—KB5082060 (OS Build 25398.2274)

April 14, 2026—KB5082060 OS Build 25398.2274 Applies To Windows Server, version 23H2 This cumulative update for Windows Server, version 23H2 KB5082060, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more...

February 10, 2026—KB5075971 (Monthly Rollup)

February 10, 2026—KB5075971 Monthly Rollup Applies To Windows Server 2012 ESU 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 a...

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

January 24, 2026—KB5078131 OS Build 17763.8281 Out-of-band Applies To Win 10 Ent LTSC 2019 Windows Server 2019 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain...

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

January 13, 2026—KB5073699 Security-only update Applies To Windows Server 2008 R2 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and...

January 13, 2026—KB5073697 (Monthly Rollup)

January 13, 2026—KB5073697 Monthly Rollup Applies To Windows Server 2008 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and business...

January 13, 2026—KB5073457 (OS Build 20348.4648)

January 13, 2026—KB5073457 OS Build 20348.4648 Applies To Windows Server 2022 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...

January 13, 2026—KB5073455 (OS Build 22631.6491)

January 13, 2026—KB5073455 OS Build 22631.6491 Applies To Windows 11 version 23H2, all editions 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...

December 18, 2025—KB5074980 (Monthly Rollup) Out-of-band

December 18, 2025—KB5074980 Monthly Rollup Out-of-band Applies To Windows Server 2012 ESU 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...

December 18, 2025—KB5074976 (OS Builds 19044.6693 and 19045.6693) Out-of-band

December 18, 2025—KB5074976 OS Builds 19044.6693 and 19045.6693 Out-of-band Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect t...

November 11, 2025—KB5068908 (Security-only update)

November 11, 2025—KB5068908 Security-only update Applies To Windows Server 2008 R2 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal an...

KB5068783: Servicing stack update for Windows Server 2012 R2: November 11, 2025

KB5068783: Servicing stack update for Windows Server 2012 R2: November 11, 2025 Applies To Windows Server 2012 R2 ESU Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of...

October 14, 2025—KB5066872 (Monthly Rollup)

October 14, 2025—KB5066872 Monthly Rollup Applies To Windows Server 2008 R2 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and...

October 23, 2025—KB5070884 (OS Build 20348.4297) Out-of-band

October 23, 2025—KB5070884 OS Build 20348.4297 Out-of-band Applies To Windows Server 2022 Windows Secure Boot certificate expiration Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and business devices to...

October 14, 2025—KB5066874 (Monthly Rollup)

October 14, 2025—KB5066874 Monthly Rollup Applies To Windows Server 2008 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and business...

September 9, 2025—KB5065510 (Security-only update)

September 9, 2025—KB5065510 Security-only update Applies To Windows Server 2008 R2 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal an...

September 9, 2025—KB5065511 (Security-only update)

September 9, 2025—KB5065511 Security-only update Applies To Windows Server 2008 Premium Assurance Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and...

KB5065768: Servicing stack update for Windows Server 2012: September 9, 2025

KB5065768: Servicing stack update for Windows Server 2012: September 9, 2025 Applies To Windows Server 2012 ESU Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain...