KB5005103 Windows 10 1909 Build Update 18363.1766

A new cumulative update ‘KB5005103 ‘ is now available for Windows 10 version 1909 that promises quality fixes and improvements to your device. This is basically a non-security patch update and you need not install this on your computer unless you are facing some problems or think of it otherwise. 

Editor Tip: RESTORO is a great software that can automatically find and resolve update, activation, or driver issues on your Windows 11/10 PC. Having this tool ensures that you can use your device to its fullest capacity.

Download: RESTORO PC Repair Tool

In this post, we provide all the key highlights, fixes, and improvements that came along with this optional update. Go through the below list of new features and decide for yourself about installing this cumulative update. 

Installing KB5005103 will update Windows 10 1909 Build OS to 18363.1766.

Patch Tuesday - KB5005103

KB5005103 Windows 10 1909 Changelog

After installing this non-security patch, your device will receive the following fixes and improvements –

  • Resolves an issue with Windows Movies and TV app that prevents it from playing .mp4 media files containing Pixel Aspect Ration (PAR) information.
  • Works upon an anomaly that resets syncing for Microsoft OneDrive to “Known folders only”. This problem occurs only when you update your Windows PC to a new Build update.
  • Resolves an issue that prevents you from writing to a WMI repository when a low memory condition occurs.
  • Users may now easily track Distributed Component Object Model (DCOM) activation failures.
  • Applications using unthemed windows don’t minimize before because of an internal issue. Microsoft resolves this issue with this optional update.
  • Earlier, there occurs a threading issue that stops the Windows Remote Management (WinRM) service from working whenever it is under a high load.
  • Fixes a bug that prevents Secure Launch from working on some devices.
  • Input Method Editor (IME) toolbar will no longer appear when the Remote app stays closed.
  • Resolves BSOD Error 0x0000001E in srv2!Smb2CheckAndInvalidateCCFFile.
  • Fixes running queries against OneSettings APIs from the obsolete Storage Health feature.
  • KB5005103 increases the default number of entries in the local security authority (LSA) Lookup Cache. Doing so improves lookup performance in high lookup volume scenarios.
  • Previously, using the robocopy command with the backup option (/B) to fix data loss get into some errors. Such a problem occurs only when the source location contains tiered Azure File Sync files or tiered Cloud Files.
  • Resolves Windows Defender Exploit Protection issue that stops certain Microsoft Office applications from working on machines having low-end processors.

Other Fixes and Improvements

In addition to the above fixes, KB5005103 brings the following changes as well –

  • Resolves an issue with a critical exception that the Open File dialog fails to handle. As a result, a Microsoft Foundation Class (MFC) application unexpectedly closes.

  • Addresses an issue that might cause a system to stop working after a deduplication filter detects damage in a reparse point. This issue occurs because of deduplication driver changes introduced in a previous update.

  • Addresses an issue with the Microsoft OneDrive sync setting "Always keep on this device". The setting is unexpectedly reset to "Known folders only" after you install a Windows update.

  • Works upon an issue that causes the Windows Management Instrumentation (WMI) provider host process to stop working. This occurs because of an unhandled access violation that occurs when using the Desired State Configuration (DSC).

  • Addresses an issue that causes file migration between Distributed File System (DFS) paths that are stored on different volumes to fail. This issue occurs when you implement the migration using PowerShell scripts that use the Move-Item command.

  • Addresses an issue that causes Authentication Mechanism Assurance (AMA) to stop working. This issue occurs when you migrate to Windows Server 2016 (or newer versions of Windows) and when using AMA in conjunction with certificates from Windows Hello for Business.

  • Fixes an issue that prevents Code Integrity rules from working correctly when specifying Package Family Name rules in a Code Integrity policy. This issue occurs because of the incorrect handling of case-sensitive names.

  • Addresses an issue that prevents the ShellHWDetection service from starting on a Privileged Access Workstation (PAW) device and prevents you from managing BitLocker drive encryption.

  • Addresses an issue that might occur when you configure the policy, "Delete user profiles older than a specified number of days on system restart". If a user has been signed in for longer than the time specified in the policy, the device might unexpectedly delete profiles at startup.

Known Issues on KB5005103 

As of now, there are no known issues with this patch update.

How to download and install this update

By default, this update gets downloaded/installed automatically if you haven’t set your PC as a metered connection. In case you have not received this non-security update via Windows update, use these steps –

  1. Windows Update: Go to Settings > Update & Security > Windows update, and hit check for updates. The system will connect to Microsoft’s server and download/install the latest cumulative update. 
  2. Update Catalog: Microsoft distributes new security/non-security updates in batches. If the above search doesn’t reveal the “KB5005103 ” update, you may its standalone package as well. This package is in the .msu file format and requires a double-tap to begin the installation. Here’s the link to download KB5005103 on your computer –

Download – Windows 10 1909 Standalone package


Note: Before you install this non-security update, make sure to download and install July 13, 2021, SSU (KB5004748) on your computer. If not, the update process may fail or get into some other problems.


Tip: If you are facing update, activation, or driver issues on your Windows PC, try RESTORO PC Repair Tool.This software will scan your device for potential issues and resolve them automatically.