September 20, 2018—KB4457139 (Preview of Monthly Rollup)

Improvements and fixes

This non-security update includes improvements and fixes that were a part of KB4457144 (released September 11, 2018) and also includes these new quality improvements as a preview of the next Monthly Rollup update:

• Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.

• Addresses an issue with the diagnostic pipeline for devices enrolled in Windows Analytics when the CommercialID registry key, "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\DataCollection" is present.

• Addresses a memory leak issue that occurs when a device with a multilingual UI calls the LoadString API.

• Addresses an issue in which all Guest Virtual Machines running Unicast NLB fail to respond to NLB requests after the Virtual Machines restart.

Known issues in this update

How to get this update

Before installing this update

Windows cumulative updates require that you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). This helps to mitigate potential issues while installing the LCU.

If you are using Windows Update, the latest SSU (KB3177467) will be offered to you automatically. To get the stand-alone package for the latest SSU, go to the Microsoft Update Catalog.

Install this update

This is provided as an Optional update on Windows Update. For more information about how to run Windows Update, see How to get an update through 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 4457139.