Windows 10 Build 18362.329 (KB4512941 for version 1903)

Microsoft is releasing the second cumulative update this month for Windows 10 version 1903. KB4512941 raises the OS build number to 18362.329, and comes with a list of fixes. In addition, it requires a new servicing stack update (SSU), which is also released via the patch KB4515530.

WIndows 10 May 2019 Update Banner

KB4512941 is an optional cumulative update.  This means that you'll need to open Settings >Update & recovery > Windows Update and explicitly confirm your intention to get this patch by clicking on the "Download and install" link.

The update fixes bugs in Windows Sandbox, issues with Spatial Audio is games, and more.

The following change log is available for KB4512941.

Highlights


  • Updates an issue that prevents certain games from leveraging Spatial Audio capabilities.
  • Updates an issue that fails to provide a cursor when you select a text input box using touch.
  • Updates an issue that may cause the name of an unsupported application to appear as default text, such as “ms-resource:AppName/Text” in the Start menu after upgrading the operating system.
  • Updates an issue with downloading copyrighted digital media (music, TV shows, movies, and so on) from certain websites using Microsoft Edge and Internet Explorer.
  • Improves the user experience and app compatibility so that more Win32 apps will work with Windows Mixed Reality.

Improvements and fixes


This non-security update includes quality improvements. Key changes include:

  • Addresses an issue that displays a black screen when you use Remote Desktop to connect to a machine running Windows 10, version 1903.
  • Addresses an issue that may prevent the Windows Sandbox from starting with the error, "ERROR_FILE_NOT_FOUND (0x80070002)." This occurs on devices in which the operating system language is changed during the update process when installing Windows 10, version 1903.
  • Increases the number of supported interrupts per device to 512 on systems that have x2APIC enabled.
  • Addresses an issue that prevents some Trusted Platform Module (TPM) devices from being used for Next Generation Credentials.
  • Addresses an issue that causes a workstation to stop working when you sign in using an updated user principal name (UPN) (for example, changing UserN@contoso.com to User.Name@contoso.com).
  • Addresses an issue that prevents Windows Defender Advanced Threat Protection (ATP) from running automated forensic data collection when using registry-based proxy configuration.
  • Addresses an issue that prevents Windows Defender Advanced Threat Protection (ATP) from sending cyberspace events for paths beginning with \\tsclient.
  • Addresses a possible compatibility issue when Windows Defender Advanced Threat Protection (ATP) accesses case-sensitive Server Message Block (SMB) shares.
  • Addresses a rare issue that occurs when the mssecflt.sys driver takes too much space on the kernel stack. This results in the error, "STOP 0x7F: UNEXPECTED_KERNEL_MODE_TRAP", and Parameter 1 is set to “EXCEPTION_DOUBLE_FAULT.”
  • Addresses an issue that leads to excessive memory utilization in Windows Defender Advanced Threat Protection (ATP).
  • Improves the detection accuracy of Microsoft Defender ATP Threat & Vulnerability Management.
  • Addresses an issue in which Windows Defender Application Control will not allow third-party binaries to be loaded from a Universal Windows Platform application. CodeIntegrity event error 3033 appears as, “Code Integrity determined that a process (<process name>) attempted to load <binary name> that did not meet the Store signing level requirements.”
  • Addresses an issue that causes devices to have truncated device names when Autopilot provisioning automatically assigns a name to them.
  • Addresses an issue in which the product description of Windows Server 2019 was incorrect when queried using slmgr /dlv.
  • Addresses an issue that causes the Windows Management Instrumentation (WMI) class Win32_PhysicalMemory to report that 32 GB memory chips have a missing Capacity value.
  • Addresses an issue that prevents you from copying and pasting compound documents (formerly OLE objects) between an application that hosts the RichEdit control and other applications.
  • Addresses an issue that prevents certain games from leveraging Spatial Audio capabilities.
  • Addresses an issue that fails to provide a cursor when you select a text input element using touch.
  • Addresses an issue that may cause the name of an unsupported application to appear as default text, such as “ms-resource:AppName/Text” in the Start menu after upgrading the operating system.
  • Addresses an issue that may prevent the personal identification number (PIN) prompt from appearing when authenticating in Internet Explorer.
  • Addresses an issue with downloading digital rights management (DRM) files from certain websites using Microsoft Edge and Internet Explorer.
  • Improves the user experience and app compatibility so that more Win32 apps will work with Windows Mixed Reality.
  • Addresses an issue with LdapPermissiveModify requests, which fail to make Active Directory (AD) group membership changes if the Lightweight Directory Access Protocol (LDAP) client uses the Security Identifier (SID) syntax. In this scenario, Active Directory returns a “SUCCESS” status even though the change did not occur.
  • Addresses an issue that may prevent devices from starting when they start up using Preboot Execution Environment (PXE) images from Windows Deployment Services (WDS) or System Center Configuration Manager (SCCM). The error is, "Status: 0xc0000001, Info: A required device isn't connected or can't be accessed."
  • Addresses an issue that may prevent devices from starting up or cause them to continue restarting if they are connected to a domain that is configured to use MIT Kerberos realms. Domain controllers and domain members are both affected.
  • Addresses an issue that may cause the following to stop responding:
    • Applications that were made using Visual Basic 6 (VB6).
    • Macros that use Visual Basic for Applications (VBA).
    • Scripts or apps that use Visual Basic Scripting Edition (VBScript).

You may also receive an "Invalid procedure call” error.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.


The update requires a new servicing stack update, KB4515530. It addresses an uninstall issue with automated maintenance. If the Features on Demand (FOD) feature has a language satellite installed, the feature is left in an unusable state. Additionally, the released language pack content is not removed even if it is superseded.

Both updates are available via Windows Update, and on the Microsoft Update Catalog. Open Settings - > Update &recovery and click on the Check for Updates button on the right.

Alternatively, you can get them from the Windows Update online catalog.

Helpful links:

Source: Windows Update History

6 thoughts on “Windows 10 Build 18362.329 (KB4512941 for version 1903)

  1. Shyam Reddy

    Thanks Sergey! I installed and reverted because of the issue mentioned below.

    https://www.windowslatest.com/2019/08/31/windows-10-kb4512941-high-cpu-usage/

    Reply
  2. Info4u

    This update causes Cortana to fail in a loop and cause high CPU usage. Do not install, it has been reported already by many users and workaround is also found. But do not install anyway.

    Reply
  3. chesscanoe

    I am one of many that chose to install KB4512941 and saw a 22% – 36% CPU use by SearchUI.exe that for me ran for about 3 hours before ending with Windows Search still broken. For me a stable circumvention to the high CPU use was to go into Task Manager and terminate SearchUI.exe . Windows Search still will not work, but Everything Search still does work. Other solutions are proposed on reddit.com and Ghacks.net and askwoody.com and elsewhere. I prefer to have the fixes in KB4512941 and wait for a Microsoft fix maybe next week, but others may choose not to install KB4512941.

    Reply
  4. Richard_Ankrah

    high CPU usage by SearchUI.exe, part of Cortana after installing this update

    Reply
  5. Branislav Lacko

    This works as fix, but you have to uninstall the update if you already installed, then reinstall it. https://borncity.com/win/2019/08/30/windows-10-v1903-update-kb4512941-workaround-for-the-cortana-high-cpu-load-issue/

    Reply
    1. Shyam Reddy

      Thanks Branislav Lacko for the tip. Worked for me. :)

      Reply

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