Improvements and fixes
This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
Addresses an issue in which all guest virtual machines running Unicast NLB fail to respond to NLB requests after the virtual machines restart.
Security updates to Windows Media Player, Microsoft Office Graphics, Microsoft Graphics Component, Windows Storage and Filesystems, and the Microsoft JET Database Engine.
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
Known issues in this update
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 KB4471319.
How to get this update
This update is now available for installation through WSUS. 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 update 4463104.