September 9, 2025-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5065959)

September 9, 2025-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5065959 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2...

.NET 9.0 Update - September 9, 2025 (KB5066234)

.NET 9.0 Update - September 9, 2025 KB5066234 .NET 9.0 has been refreshed with the latest update as of September 9, 2025. 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...

Hotfix update for Exchange Server Subscription Edition RTM HU2: September 8, 2025 (KB5066373)

Hotfix update for Exchange Server Subscription Edition RTM HU2: September 8, 2025 KB5066373 Hotfix update HU 2 for Microsoft Exchange Server SE RTM was released on September 8, 2025. It includes fixes for non-security issues and may introduce new features. These fixes and features will also be...

Hotfix update for Exchange Server 2019 CU15 HU4: September 8, 2025 (KB5066372)

Hotfix update for Exchange Server 2019 CU15 HU4: September 8, 2025 KB5066372 Hotfix update HU 4 for Microsoft Exchange Server 2019 CU15 was released on September 8, 2025. It includes fixes for non-security issues and may introduces new features. These fixes and features will also be included in...

Hotfix update for Exchange Server 2019 CU14 HU7: September 8, 2025 (KB5066371)

Hotfix update for Exchange Server 2019 CU14 HU7: September 8, 2025 KB5066371 Hotfix update HU 7 for Microsoft Exchange Server 2019 CU14 was released on September 8, 2025. It includes fixes for non-security issues and may introduce new features. These fixes and features will also be included in...

Hotfix update for Exchange Server 2016 CU23 HU18: September 8, 2025 (KB5066370)

Hotfix update for Exchange Server 2016 CU23 HU18: September 8, 2025 KB5066370 Hotfix update HU 18 for Microsoft Exchange Server 2016 CU23 was released on September 8, 2025. It includes fixes for non-security issues and may introduce new features. These fixes and features will also be included in...

August 28, 2025-KB5064401 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 and Microsoft server operating system version 24H2

August 28, 2025-KB5064401 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 and Microsoft server operating system version 24H2 IMPORTANT This update was originally released in the Security and Quality Rollup that’s dated August 26, 2025. This update is included in th...

August 29, 2025—KB5064081 (OS Build 26100.5074) Preview

August 29, 2025—KB5064081 OS Build 26100.5074 Preview 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...

August 26, 2025—KB5063842 (OS Build 19045.6282) Preview

August 26, 2025—KB5063842 OS Build 19045.6282 Preview 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...

August 26, 2025-KB5064794 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

August 26, 2025-KB5064794 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 Release Date: August 26, 2025 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows 10 Version...

August 26, 2025—KB5064080 (OS Build 22631.5840) Preview

August 26, 2025—KB5064080 OS Build 22631.5840 Preview 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...

September 9, 2025-KB5064403 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2

September 9, 2025-KB5064403 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 IMPORTANT This update was originally released in the Security and Quality Rollup that’s dated August 26, 2025. This update is included in the Security and Quali...

July 8, 2025—KB5062624 (Monthly Rollup)

July 8, 2025—KB5062624 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 months...

July 8, 2025—KB5062557 (OS Build 17763.7558)

July 8, 2025—KB5062557 OS Build 17763.7558 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...

May 13, 2025—KB5058392 (OS Build 17763.7314)

May 13, 2025—KB5058392 OS Build 17763.7314 Support for Windows 10 has ended on October 14, 2025 After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend...

May 13, 2025—KB5058387 (OS Build 10240.21014)

May 13, 2025—KB5058387 OS Build 10240.21014 Support for Windows 10 has ended on October 14, 2025 After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend...

May 13, 2025—KB5058379 (OS Builds 19044.5854 and 19045.5854) - EXPIRED

May 13, 2025—KB5058379 OS Builds 19044.5854 and 19045.5854 - 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. ---...

July 8, 2025—KB5062619 (Security-only update)

July 8, 2025—KB5062619 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 past...

July 8, 2025—KB5062618 (Security-only update)

July 8, 2025—KB5062618 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 past...

July 8, 2025—KB5062597 (Monthly Rollup)

July 8, 2025—KB5062597 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 months...

July 8, 2025—KB5062561 (OS Build 10240.21073)

July 8, 2025—KB5062561 OS Build 10240.21073 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...

July 8, 2025—KB5062554 (OS Builds 19044.6093 and 19045.6093)

July 8, 2025—KB5062554 OS Builds 19044.6093 and 19045.6093 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...

July 8, 2025—KB5062553 (OS Build 26100.4652)

July 8, 2025—KB5062553 OS Build 26100.4652 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...

May 13, 2025—KB5058411 (OS Build 26100.4061)

May 13, 2025—KB5058411 OS Build 26100.4061 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows 11, version 24H2, see its update history page. Be sure to follow @WindowsUpdate to find out when new conte...

July 8, 2025—KB5062552 (OS Builds 22621.5624 and 22631.5624)

July 8, 2025—KB5062552 OS Builds 22621.5624 and 22631.5624 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...

July 8, 2025—KB5062560 (OS Build 14393.8246)

July 8, 2025—KB5062560 OS Build 14393.8246 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...

July 8, 2025—KB5062570 (OS Build 25398.1732)

July 8, 2025—KB5062570 OS Build 25398.1732 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...

July 8, 2025—KB5062572 (OS Build 20348.3932)

July 8, 2025—KB5062572 OS Build 20348.3932 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...

July 8, 2025—KB5062592 (Monthly Rollup)

July 8, 2025—KB5062592 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 months...

May 13, 2025—KB5058405 (OS Builds 22621.5335 and 22631.5335)

May 13, 2025—KB5058405 OS Builds 22621.5335 and 22631.5335 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows 11, version 23H2, see its update history page. This month's video is ready for you at...

May 13, 2025—KB5058383 (OS Build 14393.8066)

May 13, 2025—KB5058383 OS Build 14393.8066 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 1607, see its update history page. Important Windows updates do not install...

May 13, 2025—KB5058385 (OS Build 20348.3692)

May 13, 2025—KB5058385 OS Build 20348.3692 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows Server 2022, see its update history page. Be sure to follow @WindowsUpdate to find out when new content is...

July 8, 2025—KB5062632 (Monthly Rollup)

July 8, 2025—KB5062632 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 months...

May 13, 2025—KB5058384 (OS Build 25398.1611)

May 13, 2025—KB5058384 OS Build 25398.1611 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...

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

None None...

August 19, 2025—KB5066187 (OS Build 17763.7683) Out-of-band

August 19, 2025—KB5066187 OS Build 17763.7683 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...

August 19, 2025—KB5066188 (OS Builds 19044.6218 and 19045.6218) Out-of-band

August 19, 2025—KB5066188 OS Builds 19044.6218 and 19045.6218 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...

August 19, 2025—KB5066189 (OS Builds 22621.5771 and 22631.5771) Out-of-band

August 19, 2025—KB5066189 OS Builds 22621.5771 and 22631.5771 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...

Description of the security update for SharePoint Server 2019 Language Pack: August 12, 2025 (KB5002770)

Description of the security update for SharePoint Server 2019 Language Pack: August 12, 2025 KB5002770 Summary This security update resolves a Microsoft Word remote code execution vulnerability and Microsoft Word information disclosure vulnerability. To learn more about the vulnerabilities, see t...

Description of the security update for SharePoint Server 2016: August 12, 2025 (KB5002771)

Description of the security update for SharePoint Server 2016: August 12, 2025 KB5002771 Summary This security update resolves a Microsoft SharePoint remote code execution vulnerability, Microsoft SharePoint elevation of privilege vulnerability, Microsoft Word remote code execution vulnerability,...

Description of the security update for Office 2016: August 12, 2025 (KB5002756)

Description of the security update for Office 2016: August 12, 2025 KB5002756 Summary This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common Vulnerabilities and Exposures...

Description of the security update for Excel 2016: August 12, 2025 (KB5002758)

Description of the security update for Excel 2016: August 12, 2025 KB5002758 Summary This security update resolves a Microsoft Excel remote code execution vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common Vulnerabilities and Exposures...

Hotfix update for Exchange Server 2019 CU14: April 18, 2025 (KB5050673)

Hotfix update for Exchange Server 2019 CU14: April 18, 2025 KB5050673 Hotfix update for Microsoft Exchange Server 2019 CU14 was released on April 18, 2025. It includes fixes for non-security issues and introduces new features. These fixes and features will also be included in later cumulative...

Hotfix update for Exchange Server 2019 CU15: April 18, 2025 (KB5050672)

Hotfix update for Exchange Server 2019 CU15: April 18, 2025 KB5050672 Hotfix update for Microsoft Exchange Server 2019 CU15 was released on April 18, 2025. It includes fixes for non-security issues and introduces new features. These fixes and features will also be included in later cumulative...

Announcing General Availability (GA) of Exchange Subscription Edition (SE) Release to Manufacturing (RTM)

Announcing General Availability GA of Exchange Subscription Edition SE Release to Manufacturing RTM Exchange Server Subscription Edition SE was released for general availability on July 1, 2025. This release continues Microsoft’s commitment to supporting enterprise email services across cloud,...

KB5063814 - Description of the security update for SQL Server 2022 CU20: August 12, 2025

KB5063814 - Description of the security update for SQL Server 2022 CU20: August 12, 2025 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 Informati...

KB5063758 - Description of the security update for SQL Server 2019 GDR: August 12, 2025

KB5063758 - Description of the security update for SQL Server 2019 GDR: August 12, 2025 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 fix...

KB5063757 - Description of the security update for SQL Server 2019 CU32: August 12, 2025

KB5063757 - Description of the security update for SQL Server 2019 CU32: August 12, 2025 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 Informati...

August 12, 2025—KB5063709 (OS Builds 19044.6216 and 19045.6216)

August 12, 2025—KB5063709 OS Builds 19044.6216 and 19045.6216 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...

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 (KB5063222)

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 KB5063222 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...