December 10, 2019—KB4530681 (OS Build 10240.18427)

For more information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article.

Highlights

• Updates to improve security when Windows performs basic operations.
• Updates to improve security when using external devices (such as game controllers and web cameras).

Improvements and fixes

This security update includes quality improvements. Key changes include:

• Security updates to Windows Virtualization, Windows Kernel, Windows Peripherals, the Microsoft Scripting Engine, and Windows Server.
  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, please refer to 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