September 11, 2018—KB4457129 (Monthly Rollup)

Improvements and fixes

This security update includes improvements and fixes that were a part of update KB4343891 (released August 30, 2018) and addresses the following issues:

Security updates to Windows media, Windows Shell, Windows Hyper-V, Windows datacenter networking, Windows kernel, Windows virtualization and kernel, Microsoft JET Database Engine, Windows MSXML, and Windows Server.

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 KB4457133.

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.

File information

For a list of files provided in this update, download the file information for update 4457129.