Windows 10 Builds 19041.1266, 19042.1266, and 19043.1266 released in Preview

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Microsoft today released Preview updates for Windows 10 2004, 20H2, and 21H1, which share the common base. The released patch is KB5005611, and it comes with a huge list of fixes.

The update raises the OS version to 19041.1266 (2004), 19042.1266 (20H2), and 19043.1266 (21H1). It is a non-security update that comes with general fixes and improvements. The official change log highlights the following changes.

What's new in KB5005611

  • Addresses an issue that changes the device’s current UI language. This occurs during an unattended out-of-box experience (OOBE) language pack installation scenario on a desktop.
  • Addresses an issue that causes the system time to be incorrect by one hour after a daylight saving time (DST) change.
  • Addresses an issue that causes the Server Manager application to disappear after you use it to remove Hyper-V features on Windows Server 2022.
  • Addresses an issue with parsing time formats in event logs. This issue occurs when you exclude milliseconds.
  • Addresses an issue that causes the DnsCache service to increase the CPU usage to 100% utilization. As a result, the device stops responding.
  • Provides administrators the option to reset the zoom to the default for HTML dialogs in Microsoft Edge Internet Explorer mode.
  • Addresses an issue with Enterprise Mode Site List redirection from Internet Explorer 11 to Microsoft Edge. In certain circumstances, the redirection opens a site in multiple tabs in Microsoft Edge.
  • Addresses an issue with PropertyGet in JScript9.dll.
  • Addresses an issue that stops calls to the Windows Image Acquisition (WIA) minidriver for Windows Portable Devices (WPD) devices that you access using WIAMgr.
  • Addresses an issue that causes applications, such as Microsoft Outlook, to suddenly stop responding during normal use. This occurs if the application created and removed UI elements on a background thread that is no longer receiving messages.
  • Addresses an issue with the Microsoft Outlook Add-in that prevents you from providing input after you select Reply.
  • Addresses an issue that fails to keep the NumLock state after a Fast Startup restart.
  • Addresses an issue with sharing a screen using Microsoft Teams. Protected content, such as a digital rights management (DRM) email, appears black for the presenter, but appears transparent for everyone else.
  • Addresses an issue that might prevent drawing on the screen using Windows Context::UpdateRgnFromRects from working.
  • Addresses an issue that always reports the update build revision (UBR) as zero (0) on a device during enrollment to mobile device management (MDM) service.
  • Addresses an issue that might cause distortion in the audio that Cortana and other voice assistants capture.
  • Removes the limitation of 25 maximum Traffic Selectors in the Windows native Internet Key Exchange (IKE) client and server.
  • Addresses an issue that fails to display the smart card PIN dialog when you are connected to a virtual private network (VPN). This issue occurs after upgrading to Windows 10, version 2004.
  • Addresses an issue that causes a memory leak in lsass.exe when the pTokenPrivileges buffer is not released.
  • Addresses an issue with a non-paged pool (NPP) leak from the UxSF pool tag. This leak occurs when lsass.exe stops processing asynchronous Security Support Provider Interface (SSPI) calls.
  • Addresses an issue that prevents the xhunter1.sys driver from loading. As a result, some games cannot run when you enable Hypervisor-Protected Code Integrity (HVCI).
  • Addresses an issue that causes Windows to stop working if you deploy a Code Integrity policy without user mode rules.
  • Improves the performance of MsSense.exe in environments with User Datagram Protocol (UDP) applications that require high amounts of bandwidth.
  • Addresses an input method editor (IME) mode instability in the RemoteApp scenario. You must install this update on the Remote Desktop server and Remote Desktop client.
  • Addresses an issue that causes blurry News and interests icons when you use certain screen resolutions.
  • Addresses a paged pool memory leak of the registry keys for the Virtual Desktop ID that occurs in explorer.exe.
  • Removes a hyperlink that might cause the Input app to stop working when you first enter fuzzy pinyin content.
  • Addresses an activation issue for the Input application.
  • Addresses an issue that causes LogonUI.exe to stop working because Direct Manipulation fails to start.
  • Addresses an issue that causes News and interests to appear in the context menu even when you have disabled it on a device.
  • Addresses an issue that causes the configuration for multiple artifact DB support across datacenters to fail for Security Assertion Markup Language (SAML) artifacts.
  • Addresses an issue that causes the LsaLookupSids() function to fail. This occurs when there are security identifiers (SID) for users that no longer exist in a group that contains cross-domain trusted users.
  • Addresses an issue that fails to apply the post_logout_redirect_uri= parameter when you use an External Claims Provider.
  • Addresses an issue with a deadlock in the WebDav redirector that occurs when it attempts to read a file from the local TfsStore. As a result, the system stops responding.
  • Addresses an issue that causes a stop error after a restart.
  • Addresses an issue that causes apps to lose focus when the taskbar is not at the bottom of the screen.
  • Implements a Group Policy setting for the following registry value:Registry location:  HKLM\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint

    Value name: RestrictDriverInstallationToAdministrators

    Value data: 1

    For more information, see KB5005010.

  • Adds the ability to configure period or dot (.) delimited IP addresses interchangeably with fully qualified host names in the following Group Policy settings:

How to install optional 'Preview' updates

To download these updates, open Settings - > Update & recovery. In the Optional updates available area, you’ll find the link to download and install the update. We have a tutorial on this topic here, so you may want to check it for more details.

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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

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