June 9, 2026—KB5094041 (Monthly Rollup)

June 9, 2026—KB5094041 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 only a...

Microsoft Windows DHCP Server 安全漏洞

Microsoft Windows is a set of operating systems used by Microsoft Corporation USA for personal devices. A security vulnerability exists in Microsoft Windows DHCP Server. An attacker has exploited the vulnerability to cause a denial of service on the system. The following products and editions are...

KB5020447: Out-of-band update for Windows 8.1 and Server 2012 R2: October 17, 2022

KB5020447: Out-of-band update for Windows 8.1 and Server 2012 R2: October 17, 2022 Summary This update includes improvements for the following: It addresses an issue that might affect some types of Secure Sockets Layer SSL and Transport Layer Security TLS connections. These connections might have...

September 13, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5017531)

September 13, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5017531 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1...

August 9, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5016740)

August 9, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5016740 Applies to:Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microso...

Microsoft Windows Kernel 安全漏洞

Microsoft Windows Kernel is the kernel of the Windows operating system by Microsoft Corporation USA. A security vulnerability exists in Microsoft Windows Kernel. The following products and versions are affected:Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based...

June 14, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5014808)

June 14, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5014808 Applies to:Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsof...

Microsoft Windows Kernel 权限许可和访问控制问题漏洞

Microsoft Windows Kernel is the kernel of the Windows operating system from Microsoft Corporation USA. A vulnerability exists in the Microsoft Windows Kernel with privilege permission and access control issues. The following products and versions are affected: Windows 7 for x64-based Systems...

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5004873)

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5004873 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1...

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5003781)

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5003781 Applies to:Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1...

KB5001640: March 9, 2021 update causes Windows 8.1 and Server 2012 R2 to not print graphical content

KB5001640: March 9, 2021 update causes Windows 8.1 and Server 2012 R2 to not print graphical content Summary This update resolves the following issue: Addresses an issue that fails to print the graphical content in a document after installing the March 9, 2021 update. Known issues in this update ...

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB4598502)

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB4598502 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1...

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB4598501)

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB4598501 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2...

WUSA freezes when you install an update in Windows 8.1 or Windows Server 2012 R2

WUSA freezes when you install an update in Windows 8.1 or Windows Server 2012 R2 Symptoms When you install an update that uses the Windows Update Standalone Installer WUSA in Windows 8.1 or Windows Server 2012 R2, the Wusa.exe process freezes. Resolution To resolve this issue, install the update...

Wudfhost.exe crashes when you plug in a USB-ICCD-compliant smart card device into a Windows computer

Wudfhost.exe crashes when you plug in a USB-ICCD-compliant smart card device into a Windows computer Symptoms Assume that you plug in a USB-ICCD-compliant smart card device into a computer that is running Windows 8, Windows Server 2012, Windows 7 Service Pack 1 SP1, or Windows Server 2008 R2 SP1...

Screen flickers or becomes blank when you drag tiles on the Start screen in Windows

Screen flickers or becomes blank when you drag tiles on the Start screen in Windows This article describes an issue that occurs when you drag tiles on the Start screen in Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. An update is available to resolve this issue. Before you install this...

September 2015 servicing stack update for Windows 8 and Windows Server 2012

September 2015 servicing stack update for Windows 8 and Windows Server 2012 This article describes a servicing stack update for Windows 8, Windows RT, and Windows Server 2012. The update fixes the following issue. About servicing stack The servicing stack includes the files and resources that are...

December 2014 servicing stack update for Windows 8.1 and Windows Server 2012 R2

December 2014 servicing stack update for Windows 8.1 and Windows Server 2012 R2 This article describes a servicing stack update for Windows 8.1 or Windows Server 2012 R2. The update fixes some issues and has a prerequisite. Note We recommend that you install update 3021910 as it contains addition...

Preview of Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB4538158)

Preview of Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB4538158 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1...

Preview of Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Server 2012 R2 (KB4524743)

Preview of Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Server 2012 R2 KB4524743 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .N...