KB4516045 updates Windows 10 1803 Build 17134.1039 – 24 Sept 2019

On 24th Sept, Microsoft has rolled out KB4516045 cumulative update for Windows 10 1803 users which bumps the existing version to build 17134.1039. This patch holds many more new sets of general fixes and improvements especially for devices running the October 2018 Update. As per the experts, they address the browser to stop working, Microsoft Narrator, excessive CPU usage, and so on. Microsoft threw out this update just one day after it previously shipped another round of cumulative updates to rectify security vulnerability in Internet Explorer.

The team has also published a few known issues which they promised to work upon them in the forthcoming days. Besides, you can download KB4516045 as .msi files by visiting the link provided at the end of this guide. Here is the complete catalog of  Windows 10 cumulative updates.


General Improvements and fixes on KB4516045

This non-security update build 17134.1039 doesn’t cover any new features rather comprises only the quality enhancements. Here are the Key changes-

  • Works upon an issue that may cause a browser to obstruct working on certain architectures. 
  • The team resolves an issue that restricts Microsoft Narrator from opening when the User Account Controls setting is disabled on the Standard User account. 
  • Fixes an issue that fails to render a cursor when you select a text input element using touch. 
  • Build 17134.1039 rectifies an issue with configuring a lock screen image using a Group Policy. In the previous update, on enabling AppLocker DLL rules, the image would not change. Instead, you will get a solid blue background. 
  • KB4516045 resolves an issue that causes large usage of the central processing unit. This issue occurs when users switch applications or hover over the Taskbar. 
  • Resolves an issue that restrains an App-V application from opening and displays a network failure error. This problem occurs under certain circumstances. Such as, when a system’s battery is low or there is an accidental power failure.  
  • The tech expert resolves an issue that may not preserve changes to the access control policy when upgrading to a newer version of Windows 10. 
  • Microsoft team works upon an issue that may cause authentication to fail for certificate-based authentication. This occurs when the certificate authentication accommodates a cname as part of the pre-authentication request. 
  • Works upon an issue that restricts a web browser from connecting securely to Windows Server. This happens when using a client authentication certificate. 
  • Tech experts repair an issue that may cause the Local Security Authority Subsystem Service to obstruct working with an “0xc0000005” error. 
  • KB4516045 adjusts the default setting for BitLocker when encrypting a self-encrypting hard drive. Accordingly, in this scenario, the default is to use software encryption for recently encrypted drives. However, for existing drives, the type of encryption will not change.
  • Works upon an issue that inhibits the BitLocker recovery key from being successfully backed up to Azure Active Directory. 
  • There appears some possible issue with Microsoft Defender Advanced Threat Protection. Build 17134.1039 resolves this problem as it accesses case-sensitive Server Message Block shares.
  • The tech community works upon a rare issue that occurs when the mssecflt.sys driver takes too much space on the kernel stack. Here, this results in the error, “STOP 0x7F: UNEXPECTED_KERNEL_MODE_TRAP”, and Parameter 1 is set to “EXCEPTION_DOUBLE_FAULT.” 
  • With this build, the company deals with an issue that leads to the utmost memory utilization in Microsoft Defender Advanced Threat Protection (ATP). 
  • Enhances the detection efficiency of Microsoft Defender ATP Threat & Vulnerability Management. 
  • Works upon an issue that provides a Windows Hello for Business user two certificates for authentication while certificate renewal rather of one certificate. 
  • KB4516045 resolves an issue that causes the lsass.exe service to halt working. Further, it causes the system to shut down. This type of serious issue occurs when migrating Data Protection API (DPAPI) credentials using dpapimig.exe with the –domain option.
  • The team fixes an issue that may offer the write access to a removable USB disk. It happens when a user shifts from a privileged user to an unprivileged user.
  • Works on an issue that obstructs you from running the Active Directory Diagnostics Data Collector Set from the Performance Monitor for Domain Controllers. It results in the Data Collector Set name to appear empty. You may experience the error if it continues running the Active Directory Diagnostics Data Collector Set. After all, here the error is, “The system cannot find the file specified.” Event ID 1023 is logged with the source as Perflib and the following messages-
    • “Windows cannot load the extensible counter DLL
    • “The specified module could not be found.” 
  • Works upon an issue in GetFinalPathNameByHandleW() that obstructs Favorites from opening in Internet Explorer 11. It occurs when Favorites are redirected and offline in a client-side caching outline with improved protected mode compatibility (EPM) enabled.
  • The tech community fixes an issue with the Origin request header behavior in Internet Explorer when you make cross-origin resource sharing (CORS) requests that use redirected resources in internal subnets.
  • Furthermore, Microsoft and its team allow auditing of security events for clients managed by mobile device management (MDM) for security monitoring and incident response activities.
  • Resolves an issue that causes virtual desktop infrastructure (VDI) environments to exhibit black, glittering rectangles on the screen when using Microsoft Outlook and Microsoft Office.

Known Issues

In addition, KB4516045 non-security patch update comprises the similar bugs that were available in the security updates KB4522014 released on 23 Sept.

How to get this cumulative Update KB4516045

Before downloading this non-security update build 17134.1039, do run the current SSU on your PC. This, in turn, will make sure that this process remains smooth and error-free. The latest servicing stack for this patch is KB4512576.

By default, you will receive a notification regarding this patch update through the Windows Update section. Although, you can download its standalone package manually through the Update Catalog.

Alternatively, navigate to the following path Settings > Update & Security > Windows Update and hit Check for updates option. 

Source – Microsoft Update Catalog