March 12, 2019—KB4489872 (OS Build 10240.18158)

Improvements and fixes

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

• Updates time zone information for Chile.
• Addresses an issue that prevents recognition of the first character of the Japanese era name as an abbreviation and may cause date parsing issues.
• Addresses an issue that causes shutdown to stop responding and display a black screen.
• Addresses an issue that prevents the authentication credentials dialog from appearing when an enterprise web server tries to connect to the internet.
• Addresses an issue that may cause applications that use a Microsoft Jet database with the Microsoft Access 95 file format to randomly stop working.
• Addresses an issue that may cause users to receive “Error 1309” while installing or uninstalling certain types of MSI and MSP files.
• Security updates to Internet Explorer, Microsoft Scripting Engine, Windows Shell, Windows Input and Composition, Windows App Platform and Frameworks, Windows Hyper-V, Windows Datacenter Networking, Windows Storage and Filesystems, Windows Server, Windows Kernel, Windows MSXML, and the Microsoft JET Database 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, see the Security Update Guide.

Windows Update ImprovementsMicrosoft 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

• Perform the operation from a process that has administrator privilege.
• Perform the operation from a node that doesn’t have CSV ownership.
  Microsoft is working on a resolution and will provide an update in an upcoming release.

How to get this update

Before installing this updateMicrosoft strongly recommends that you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For more information, see Servicing stack updates.If you are using Windows Update, the latest SSU (KB4093430) will be offered to you automatically. To get the standalone package for the latest SSU, go to the Microsoft Update Catalog.Install this updateThis 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 informationFor a list of the files that are provided in this update, download the file information for cumulative update 4489872.