KB4550969 Windows 10 1809 17763.1192 Update

KB4550969 Windows 10 1809  Build 17763.1192 Update Changelog and ways to install the patch.

KB4550969 Windows 10 1809

Microsoft just rolled out an off time cumulative update for various Windows versions, including KB4550969 for Windows 10 v1809. The patch would take the build to 17763.1192. This is a non-security update, however, it has a multitude of fixes and improvements to offer your PC.

For highlights, it addresses certain issues with Microsoft Word, Internet Explorer, and many important Windows 10 features including Windows Hello and Remote Desktop. Make sure you download these latest updates at the earliest to continue having a great experience on Windows.  You can get all the details about the patch and as to how you can get this in the sections below.

Fixes, Highlights, and improvements in KB4550969

Given below are the fixes and improvements offered by KB4550969 –

Updates and fixes pertaining to Microsoft Word
  1. The patch approaches a problem that happens because of the 3rd-party app that loads hidden tabs into Internet Options.
  2. There is improvement on an issue causing an unresponsive textbox when it has multiple lines of text in certain scenarios.
  3. The patch tries to resolve a problem resulting in failure to print content outside the margins of a document.

Updates and fixes related to network and browsers

  1. KB4550969 attempts to fix a problem that occurs whenever a third-party application loads hidden tabs into Internet Options.
  2. There is update for an issue with Microsoft IIS management tools. The tools like IIS Manager, fails to manage an ASP.NET application which has SameSite cookie settings configured in web.config.
  3. The developer also attempt to fix a problem causing high CPU usage on Active Directory (AD) domain controllers. This happens while migrating to Windows Server 2019. The situation tends to increases latency in Microsoft Exchange operations. Further, it also causes Managed Store contention, and impacts index creation in Active Directory and the Global Catalog’s performance.
  4. KB4550969 also addresses a problem that logs incorrect IP addresses in the audit logs. The issue rooted from old or missing data for active requests coming from “windowstransport/usernamemixed/certificatemixed” endpoints.

Update for issues related to group policy

  1. With KB4550969, the developer attempts to resolve an issue preventing the correct lock screen appearance. This happens when all of the below conditions are true:
    • Disabling of the GPO or Group Policy Object policy “Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Interactive Logon: Do not require Ctrl+Alt+Del Computer”.
    • Enabling of the Group Policy Object policy “Computer Configuration\Administrative Templates\System\Logon\Turn off app notifications on the lock screen” is enabled.
    • Setting the registry key HKLM\SOFTWARE\Policies\Microsoft\Windows\System\DisableLogonBackgroundImage to 1.

Update for stop errors, reliability issues, etc.

  1. KB4550969 Tries to solve the application that uses msctf.dll stops working along with 0xc0000005 (Access violation) exception appears.
  2. The developer attempts to fix a reliability issue in WDF01000.sys.
  3. Further, there is update regarding a problem that occurs when running a binary that is signed by a revoked certificate. It causes the systems to stop working and shows a 0x3B stop code.
  4. Microsoft’s team has also worked on an issue resulting in a KERNEL_SECURITY_CHECK_FAILURE (139) stop error. The problem would occur when the system turns on certain Bluetooth headset after it resumes from Sleep.
  5. KB4550969 addresses a problem stopping the Event Viewer Microsoft Management Console (MMC) when the primary monitor is below the secondary monitor. This results in an out of bounds exception.
  6. The developer attempts to settle – A user account is required in order to commit the current Data collector Set properties error – in logman.exe.

Updates for Windows Hello, Remote Desktop and other features

  1. Through KB4550969, patch works on a problem failing the devices that are provisioned for Windows Hello for Business. Sometimes Registration fails, which causes a delay in WHfB enrollment and, in some instances, throws Conflicting Objects (CNF) in the Active Directory Registered Device container.
  2. The patch also advances on an issue preventing the deletion of the Notification State registries for certain apps even after the deletion of the user profile.
  3. The patch tries to settle down stop error 0x18 (“REFERENCE_BY_POINTER”) when Remote Desktop sessions redirect devices that are not input devices.
  4. The developer has also worked to resolve an issue that shows a black screen to Windows Virtual Desktop users while attempting to sign in.
  5. The patch attempt to fix a problem that might result in a deadlock in the Remote Desktop Gateway service.
  6. There is an update related to an issue that might be stopping the functionality of the Remote Desktop Gateway service.
  7. KB4550969 also addresses a situation preventing the change of a user’s PIN after attaching the machine to Microsoft Workplace Join.

KB4550969 Other general fixes and improvements

  1. The patch attempts to solve an issue preventing the users from setting the REG_EXPAND_SZ keys in certain automated scenarios.
  2. KB4550969 offers resolution on a problem resulting in a memory leak in the LsaIso.exe process. The issue occurs when the Credential Guard is enabled and the server is under a massive authentication load.
  3. The developers have also been attempting to fix an issue that could affect networking software, such as VPN applications. Usually, it ends up stopping hash signing using the Microsoft Platform Crypto Provider for TPMs from working correctly.
  4. KB4550969 also carries improvement for merging Windows Defender Application Control policies. It’s found to be sometimes producing a duplicate rule ID error and, in turn, causing to fail the Merge-CIPolicy PowerShell command.
  5. Through this patch, Microsoft also attempts to fix the issue which doesn’t allow applications running in an Azure Active Directory environment to receive account change notifications.
  6. Last, but not the least, KB4550969 consists of an update regarding an issue preventing the first keystroke from being recognized correctly in the DataGridView cell.

Known issues with this update

There is only one currently known issue associated with this update as described below –

After receiving the Patch Tuesday update KB4493509, devices with any Asian language pack installed may encounter the stop code 0x800f0982 – PSFX_E_MATCHING_COMPONENT _NOT_FOUND.


  1. Uninstall the recently added language packs and re-install the same.  Get help from – How to Reinstall Windows 10 Language Pack.
  2. Click on Check for Updates and install the latest April 2019 Cumulative Update.

Important – If the re-installation does not work, reset your PC as follows –

  1. Proceed to the Settings app => Recovery.
  2. Select “Get Started” just below the Reset this PC.
  3. Choose Keep my Files.

Microsoft is actively working on a resolution for the error and will be available with an update in an upcoming release.

How to install KB4550969 for Windows 10 1809?


  1. Launch Windows Settings and navigate to Update & Security > Windows update.
  2. Click on Check for updates from the right side.


  1. Go to Microsoft update catalog
  2. Download the correct file and install it manually through a double click.

Source – Release note.

That’s all!!!

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Topics:  Windows update