September 11, 2018—KB4457131 (OS Build 14393.2485)

Applies to: Windows 10, version 1607Windows Server 2016

Improvements and fixes


This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Security updates to Internet Explorer, Microsoft Edge, Microsoft scripting engine, Microsoft Graphics Component, Windows media, Windows Shell, Device Guard, Windows Hyper-V, Windows catacenter networking, Windows kernel, Windows virtualization and kernel, Microsoft JET Database Engine, Windows MSXML, and Windows Server. 

Note This update is not available with express installation files for Windows Server 2016.

If you installed earlier updates, only the new fixes in this package will be downloaded and installed on your device.

For more information about the resolved security vulnerabilities, see the Security Update Guide.

Known issues in this update


Symptom Workaround
All Guest Virtual Machines running Unicast NLB fail to respond to NLB requests after the Virtual Machines restart. This issue is resolved in KB4457127.
After installing this update, installation and client activation of Key Management Service (KMS) (CSVLK) host keys do not work as expected. Microsoft is working on a resolution and will provide an update in an upcoming release.

After you install the August Preview of Quality Rollup or September 11, 2018 .NET Framework update, instantiation of SqlConnection can throw an exception. For more information about this issue, see the following article in the Microsoft Knowledge Base:

4470809 SqlConnection instantiation exception on .NET 4.6 and later after August-September 2018 .NET Framework updates

Microsoft is working on a resolution and will provide an update in an upcoming release.

 

How to get this update


This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.

Prerequisite: The servicing stack update (SSU) (KB4132216) must be installed before installing the latest cumulative update (LCU) (KB4457131). The LCU will not be reported as applicable until the SSU is installed.

File information

For a list of files provided in this update, download the file information for cumulative update 4457131