Note This release also contains updates for Windows 10 Mobile (OS Build 15063.1390) released October 9, 2018.
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, Windows Media Player, Microsoft Graphics Component, Microsoft Edge, Windows Kernel, Windows Storage and Filesystems, and Microsoft Scripting Engine.
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
Windows Update Improvements
Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.
Known issues in this update
After installing this update, some users may see a dialog box with a non-applicable message beginning with the words “Hosted by...” when first starting Microsoft Edge.This dialog will only appear once if they have turned on “Block only third-party cookies” in Microsoft Edge and applied certain language packs before installing this update.
This issue is resolved in KB4462939.
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.|
After installing this update, users may not be able to use the Seek Bar in Windows Media Player when playing specific files. This issue does not affect normal playback.
|This issue is resolved in KB4471327.|
|After installing this update, LogonUI.exe stops working intermittently.||This issue is resolved in KB4469689. |
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. For more information, see Servicing stack updates.
Install this update
This update will be downloaded and installed automatically from Windows Update. To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
For a list of the files that are provided in this update, download the file information for cumulative update 4462937.