May 17, 2018—KB4103722 (OS Build 15063.1112)

Applies to: Windows 10, version 1703

Improvements and fixes


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

  • Addresses additional issues with updated time zone information. 
  • Addresses an issue that causes Internet Explorer dialogs on a second monitor to also appear on the primary monitor when using extended display. 
  • Addresses a reliability issue in .NET applications when using a Japanese IME in a text box. 
  • Addresses an issue with the connection status of some Bluetooth devices. 
  • Addresses an issue that prevents Autodiscover in Microsoft Outlook 2013 from being used to set up email accounts when UE-V is enabled. 
  • Addresses an issue that prevents adding performance counters to the Performance Monitor on systems with many processors. 
  • Addresses an issue that generates an error when attempting to change the smart card service’s startup type from Disabled to Manual or Automatic. The error is “Cannot create a file when that file already exists.” 
  • Addresses an issue that causes sporadic authentication issues when using Web Account Manager. 
  • Addresses an issue that causes client applications that use Windows Authentication Manager to stop working when making a request to the server. 
  • Addresses an issue that causes BitLocker to go into recovery mode when updates are applied. 
  • Enables the Visual Studio IntelliTrace step-back feature to take snapshots of an application whose debug platform target is set to x86. 
  • Addresses an issue where the connection bar is missing in Virtual Machine Connection (VMConnect) when using full-screen mode on multiple monitors. 
  • Addresses an issue where Windows 10 clients that authenticate to 802.1x WLAN access points fail to apply Group Policy permissions, run scripts, or retrieve roaming profiles at user logon. This occurs because Kerberos authentication fails for \\domain\sysvol, \\domain\netlogon, and other DFS paths. 
  • Addresses an issue that causes UWP applications to stop working when they use the XAML Map Control.
  • Enhances the security of algorithms used by Windows Hello when performing facial recognition.

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, see 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


To download and install this update, go to Settings > Update & Security > Windows Update and select Check for updates.

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Important When installing both the servicing stack update (SSU) KB4132649 and the latest cumulative update (LCU) from the Microsoft Update Catalog, install the SSU before installing the LCU.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4103722