April 9, 2019—KB4493475 (OS Build 10240.18186)

Improvements and fixes

This update includes quality improvements. Key changes include:

• Addresses an issue that may cause applications that use MSXML6 to stop responding if an exception was thrown during node operations.

• Addresses an issue that causes the Group Policy editor to stop responding when editing a Group Policy Object (GPO) that contains Group Policy Preferences (GPP) for Internet Explorer 10 Internet settings.

• Addresses an issue with Custom URI Schemes for Application Protocol handlers, which may not start the corresponding application for local intranet and trusted sites on Internet Explorer.

• Addresses an issue that causes Internet Explorer to block a sub-resource download when its loaded over the HTTP protocol on a page hosted over the HTTPS protocol.

• Addresses an issue to meet GB18030 certificate requirements.

• Updates time zone information for Kazakhstan.

• Updates time zone information for São Tomé and Príncipe.

• Addresses an issue that occurs when you enable per font end-user-defined characters (EUDC). The system will stop working and a blue screen will appear at startup. This is not a common setting in non-Asian regions.

• Addresses an issue that prevents the CALDATETIME structure from handling more than four Japanese Eras. For more information, see KB4469068.

• Addresses an issue with Microsoft Office Visual Basic for Applications that fails to use the Japanese Era registry settings for dates in the Japanese format. For more information, see KB4469068.

• Addresses an issue that prevents users from enabling gan-nen support for the Japanese Era. For more information, see KB4469068.

• Addresses an issue that prevents date parsers from converting future and past dates (Gregorian and Japanese) in compound documents (formerly OLE) to a relevant Japanese Era date. For more information, see KB4469068.

• Addresses an issue that may cause compound document (OLE) server applications to display embedded objects incorrectly if you use the PatBlt API to place embedded objects into the Windows Metafile (WMF).

• Security updates to Microsoft Scripting Engine, Windows Input and Composition, Microsoft Graphics Component, Windows Storage and Filesystems, Windows Server, Windows App Platform and Frameworks, Windows Datacenter Networking, Windows MSXML, Windows Kernel, 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.

Known issues in this update

How to get this update

Before installing this update

Microsoft 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 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 the files that are provided in this update, download the file information for cumulative update 4493475. 

Related info