Windows 10 build 19044.1947 (KB5016688) outs as preview

Microsoft pushes a preview of the next cumulative update for Windows 10.

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Windows 10 update KB5016688
Windows 10 update KB5016688
  • Microsoft releases update KB5016688 as a preview for Windows 10 21H2.
  • The update bumps the version number to build 19044.1947.
  • The update KB5016688 introduces non-security fixes and improvements.

Microsoft is making available the update KB5016688 as a preview for the next update of Windows 10 21H2. The update is rolling out in the Release Preview Channel with non-security fixes and improvements.

According to the company’s announcement, the update KB5016688 bumps the version number to build 19044.1947 and provides new options for administrators to add languages remotely, improves Microsoft Defender’s ability to stop ransomware and advanced attacks, and addresses a bunch of problems with Microsoft Edge, Windows Hello for Business, BitLocker performance, Focus Assist, and more.

Update KB5016688 fixes and changes for Windows 10

These are the fixes and improvements coming to the next update of Windows 10:

  • Give IT admins the ability to remotely add languages and language-related features. Additionally, they can now manage language scenarios across several endpoint managers.
  • Enhanced Microsoft Defender for Endpoint’s ability to identify and intercept ransomware and advanced attacks.
  • Fixed an issue that causes ServerAssignedConfigurations to be null in a few full configuration scenarios.
  • Fixed a known issue that causes Microsoft Edge to stop responding when you use IE mode. This issue also prevents you from interacting with a dialog.
  • Fixed an issue that affects transparency in layered windows when you are in High Definition remote applications integrated locally (RAIL) mode.
  • Fixed an issue that might generate error 0x1E when you shut down or restart a device.
  • Fixed an issue that causes a subscription activation to fail under certain conditions.
  • Fixed an issue that might cause some game installations to fail because of a licensing issue.
  • Fixed an issue that prevents virtualized App-V Microsoft Office applications from opening or causes them to stop working.
  • Fixed an issue that might cause the deployment of the Windows Hello for Business certificate to fail in certain circumstances after you reset a device.
  • Fixed an issue that degrades BitLocker performance.
  • Fixed an issue that causes the Resultant Set of Policy tool (Rsop.msc) to stop working when it processes 1,000 or more “File System” security settings.
  • Fixed an issue that continues to trust a revoked Attestation Identity Key (AIK) certificate and fails to generate a new certificate.
  • Fixed an issue that causes the Take a Test app to remove all policies related to lockdown enforcement when you close the app.
  • Fixed an issue that affects the jump list icon colors in the Search app.
  • Fixed an issue that affects Focus Assist functionality for applications that run in full screen.
  • Fixed an issue that prevents devices from receiving an offer from Windows Update for the same extension driver when that extension driver is already installed without the base driver.
  • Fixed a race condition that causes the Local Security Authority Subsystem Service (LSASS) to stop working on Active Directory domain controllers. This issue occurs when LSASS processes simultaneous Lightweight Directory Access Protocol (LDAP) over Transport Layer Security (TLS) requests that fail to decrypt. The exception code is 0xc0000409 (STATUS_STACK_BUFFER_OVERRUN).
  • Fixed an issue that affects a lookup for a nonexistent security ID (SID) from the local domain using read-only domain controller (RODC). The lookup unexpectedly returns the STATUS_TRUSTED_DOMAIN_FAILURE error instead of STATUS_NONE_MAPPED or STATUS_SOME_MAPPED.
  • Fixed an issue that might cause cldflt.sys to reference invalid memory in race conditions.
  • Fixed an issue that affects input and output in the Storport driver and might cause your system to stop responding.

Download update KB5016688 for Windows 10

The update is available immediately and will download and install automatically through the Release Preview Channel. However, you can always force the update from Settings > Update & Security > Windows Update, click the Check for updates button, and use the option to install the optional update.

About the author
Avatar for Mauro Huculak

Mauro Huculak is a Windows expert and the Editor-in-Chief who started Pureinfotech in 2010 as an independent online publication. He is also been a Windows Central contributor for nearly a decade. Mauro has over 12 years of experience writing comprehensive guides and creating professional videos about Windows, software, and related technologies, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and About.me.