Windows 10 V1909: Update KB5003698 released (June 15, 2021)

Windows[German]On the third Tuesday of June (June 15, 2021), Microsoft has released the non-security update KB5003698. Here are some details about this update, which is for Windows 10 version 1909 (only affects the Enterprise and Education variants, as Home and Pro have fallen out of support).


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A list of updates can be found on this Microsoft website. I have pulled out the details below.

Update KB5003698 for Windows 10 V1909

Cumulative Update KB5003698 raises the Windows 10 V1909 OS build to 18363.1645.The update is available for Windows 10 version 1909 as well as Windows Server version 1909 Enterprise and Education.The update includes quality improvements but no new OS features. Here is the list of improvements, referred to by Microsoft as highlights:

  • Updates an issue that prevents certain screen reader apps from running.
  • Updates an issue that causes a loss of audio when you connect a second external monitor.
  • Updates an issue that might cause a VPN to fail. The error message is, “There are no more files”.
  • Updates an issue that causes blurry text on the news and interests button on the Windows taskbar for some screen resolutions.
  • Updates an issue with Search box graphics on the Windows taskbar that occurs if you right-click the taskbar and turn off News and interests. This graphics issue is especially visible when using dark mode.

Below is the complete list of fixes and improvements.

  • Addresses an issue that prevents sorting from working properly when using multiple versions of National Language Support (NLS) sorting.
  • Addresses a performance issue in the MultiByteToWideChar() function that occurs when it is used in a non-English locale.
  • Addresses an issue that fails to properly manage touch input related memory before a user session ends.
  • Addresses an issue that results in outdated group membership listings. This issue occurs because the Group Policy service (GPSVC) makes infrequent updates to the Windows Management Instrumentation (WMI) session. As a result, this slows the propagation of changes the Active Directory (AD) administrator makes to user or group membership.
  • Addresses an issue that causes Windows to stop working when it uses AppLocker to validate a file that has multiple signatures. The error is 0x3B.
  • Addresses an issue with the Set-RuleOption PowerShell command that fails to provide the option for the Windows Defender Application Control (WDAC) policy to treat files signed with an expired certificate as unsigned.
  • Addresses an issue that might cause BitLocker to go into recovery mode after updating the Trusted Platform Module (TPM) firmware. This occurs when the “Interactive logon: Machine account lockout Threshold” policy is set and there were incorrect password attempts.
  • Addresses an issue that prevents certain screen reader apps from running when Hypervisor-protected code integrity (HVCI) is enabled.
  • Addresses an issue that causes Windows to generate many AppLocker or SmartLocker success events.
  • Improves the accuracy and efficiency of sensitive data analysis in the Microsoft 365 Endpoint data loss prevention (DLP) Classification Engine.
  • Addresses an issue with the Internet Key Exchange (IKE) VPN service on remote access server (RAS) servers. Periodically, users cannot connect a VPN to the server over the IKE protocol. This issue might start several hours or days after restarting the server or restarting the IKEEXT service. Some users can connect while many others cannot connect because the service is in DoS Protection mode, which limits incoming connection attempts.
  • Addresses an issue that might cause a VPN to fail after renewing a user auto-enrolled certificate. The error message is, “There are no more files”.
  • Adds new glyphs to the InkFree.ttf font family for European languages.
  • Addresses an issue that causes a loss of audio when you connect a second external monitor.
  • Addresses a metadata encoding issue that causes Free Lossless Audio Codec (FLAC) music files to become unplayable if you change their title, artist, or other metadata. For more information, see FLAC encoded music file is corrupted when metadata is edited in Windows Explorer.
  • Adds support for the .hif file extension for High Efficiency Image File (HEIF) images.
  • Addresses an issue that causes Remote Desktop sessions to stop responding while the User Datagram Protocol (UDP) is enabled.
  • Adds support for the USBTest and MeasurementClass.
  • Addresses an issue in Adamsync.exe that affects the syncing of large Active Directory subtrees.
  • Addresses an error that occurs when the Lightweight Directory Access Protocol (LDAP) bind cache is full, and the LDAP client library receives a referral.
  • Addresses a redirector stop error that is caused by a race condition that occurs when the system deletes binding objects when connections close.
  • Addresses an issue that might cause a stop error when you run SmbConnectStress for a prolonged duration.
  • Addresses an issue that prevents users from setting or querying disk quotas on the C drive.
  • Addresses an issue that causes blurry text on the news and interests button on the Windows taskbar for some display configurations.
  • Addresses an issue with Search box graphics on the Windows taskbar that occurs if you use the taskbar’s context menu to turn off News and interests. This graphics issue is especially visible when using dark mode.

This update is optional and is only downloaded and installed when a search is performed in Windows Update. However, it is also available in Microsoft Update Catalog, but not via WSUS or Windows Update for Business. According to Microsoft, the installation of the LCU requires an existing Servicing Stack Update (SSU) (KB5001406) or the current SSU (KB5003974). For the update, Microsoft cites the known certificate issue when upgrading from version 1809 in support article KB5003698.

In addition, Microsoft has released an update directly for the Windows Update client to improve its reliability. This is rolled out outside of Windows Update if the machine is compatible and not an LTSC variant, and updates have not been blocked via GPO.

Similar articles:
Microsoft Office Patchday (June 1, 2021)
Microsoft Security Update Summary (June 8, 2021)
Patchday: Windows 10-Updates (June 8, 2021)
Patchday: Windows 8.1/Server 2012-Updates (June 8, 2021)
Patchday: Updates for Windows 7/Server 2008 R2 (June 8, 2021)
Patchday Microsoft Office Updates (June 8, 2021)


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2 Responses to Windows 10 V1909: Update KB5003698 released (June 15, 2021)

  1. EP says:

    beside the KB5003698 update for Win10 v1909, there’s also a new preview update for Win10 v1809 enterprise ltsc 2019 – KB5003703 released on June 15:
    https://support.microsoft.com/help/5003703

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