September 12, 2017—KB4038793 (Security-only update)

Improvements and fixes

This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

• Addressed issue in NPS server where EAP TLS authentication was broken.
• Re-release of MS16-087- Security update for Windows print spooler components.
• Security updates to Microsoft Graphics Component, Windows kernel-mode drivers, Windows shell, Microsoft Uniscribe, Microsoft Windows PDF Library, Windows TPM, Windows Hyper-V, Windows kernel, and the Windows DHCP Server.
  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 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 4038793.

Prerequisites

You must have the following update installed:2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update: April 2014