March 12, 2019—KB4489878 (Monthly Rollup)

Improvements and fixes

This security update includes improvements and fixes that were a part of update KB4486565 (released February 19, 2019) and addresses the following issues:

• Addresses an issue that may prevent the Event Viewer from showing some event descriptions for network interface cards (NIC).
• Security updates to Internet Explorer, Windows App Platform and Frameworks, Windows Cryptography, Windows Hyper-V, Windows Storage and Filesystems, Windows Fundamentals, Windows Server, Windows Kernel, Windows MSXML, and the Microsoft JET Database Engine .
  For more information about the resolved security vulnerabilities, see the Security Update Guide.

Known issues in this update

• Cache size and location show zero or empty.
• Keyboard shortcuts do not work correctly.
• Webpages intermittently do not load or render correctly.
• Issues affect credential notifications.
• Issues occur when downloading files.
  | This issue is resolved in KB4493472.
  After installing this security update, Custom URI Schemes for Application Protocol handlers may not start the corresponding application for local intranet and trusted sites on Internet Explorer.| This issue is resolved in KB4493472.
  After installing this update, NETDOM.EXE fails to run, and the on-screen error, “The command failed to complete successfully.” appears.| This issue is resolved in KB4493472.
  After installing this update, some customers report that authentication fails for services that require unconstrained delegation after the Kerberos ticket expires (the default is 10 hours). For example, the SQL server service fails.| This issue is resolved in KB4499164.
  Any compound document (OLE) server application that places embedded objects into the Windows Metafile (WMF) using the PatBltAPI may display embedded objects incorrectly.For example, if you paste a Microsoft Excel worksheet object into a Microsoft Word document, the cells may render with a different background color.| This issue is resolved in KB4493472.

How to get this update

Before installing this updateMicrosoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Rollup and applying Microsoft security fixes. If you are using Windows Update, the latest SSU (KB4490628) 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 update 4489878.