November 12, 2019—KB4525245 (OS Build 15063.2172)

Current status of Windows 10, version 1703Windows 10, version 1703 has reached end of service for all editions. To continue receiving security and quality updates, Microsoft recommends updating to the latest version of Windows 10_._Surface Hub devices remain in support. Starting on November 12, 2019, updates for Windows 10, version 1703 will be available only for Surface Hub devices. Update information and Surface Hub known issues will be listed on this page.For information about servicing timelines, see the Windows lifecycle fact sheet.

Highlights

• Updates to improve security when using Internet Explorer and Microsoft Edge.
• Updates to improve security when using external devices (such as game controllers, printers, and web cameras) and input devices such as a mouse, keyboard, or stylus.
• Updates to improve security when using Microsoft Office products.

Improvements and fixes

This security update includes quality improvements. Key changes include:

• Addresses an issue that prevents the BitLocker recovery key from being successfully backed up to Azure Active Directory.
• Addresses an issue that causes events that are based on Windows Defender Application Control Code Integrity to be unreadable.
• Provides protections against the Intel® Processor Machine Check Error vulnerability (CVE-2018-12207). Use the registry setting as described in the Guidance KB article_. _(This registry setting is disabled by default.)
• Provides protections against the Intel® Transactional Synchronization Extensions (Intel® TSX) Transaction Asynchronous Abort vulnerability (CVE-2019-11135). Use the registry settings as described in the Windows Client article_. _(These registry settings are enabled by default for Windows Client OS editions.)
• Security updates to Microsoft Scripting Engine, Internet Explorer, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Microsoft Edge, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Kernel, Windows Datacenter Networking, Windows Peripherals, 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, 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

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

How to get this update