December 11, 2018—KB4471322 (Security-only update)

Applies to: Windows 8.1Windows Server 2012 R2

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 that may prevent the use of the Seek Bar in Windows Media Player when playing specific files. This issue does not affect normal playback.
  • Security updates to Microsoft Graphics Component, Windows Storage and Filesystems, Windows Wireless Networking, and Windows Kernel.

For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

Known issues in this update


Microsoft is not currently aware of any issues with this update.

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.

File information

For a list of the files that are provided in this update, download the file information for update 4471322.