Windows 10 20H2-22H2 Preview Update KB5019275 (Jan. 19, 2023)

Windows[German]Microsoft has released an optional cumulative (preview) update KB5019275 on 18 January 2023 (C-Week). This is intended to eliminate numerous bugs in Windows 10 21H2-21H2. Below I provide an overview regarding these updates for Windows 10. After March 2023 Microsoft won't release preview updates for older Windows 10 builds.


The information about the updates can be found on the Windows 10 update history page. It should be noted that these updates are so-called preview updates. These are optional and must be manually triggered for download and installation by default.

After March 2023, there are no more optional, non-security preview releases for the supported editions of Windows 10, version 20H2 and Windows 10, version 21H2. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for these versions. Windows 10, version 22H2 will continue to receive security and optional releases.

Windows 10 Preview Update KB5019275

Cumulative preview update KB5019275 is available for Windows 10 Enterprise version 20H2, Windows 10 Education, Windows 10 IoT Enterprise version 20H2 and Windows 10 version 21H1 to 21H2. It upgrades the build to 1904x.2546. Here are the highlights of what has been fixed.

  • New! This update displays storage alerts for Microsoft OneDrive subscribers on the Systems page in the Settings app. The alerts appear when you are close to your storage limit. You can also manage your storage and purchase additional storage, if needed.
  • This update addresses an issue that might affect news and interests. It might flicker on the taskbar and File Explorer might stop responding.

Below is the list of new features and fixes that Microsoft specifies for the update (these will be included in the security update for the following month).

  • New! This update addresses an issue that affects cached Fast Identity Online 2.0 (FIDO2) authentication data. The first attempt to sign in fails. The second attempt to sign in succeeds.
  • This update addresses an issue that affects searchindexer.exe. It randomly stops you from signing in or signing out.
  • This update addresses an issue that affects conhost.exe. It stopsresponding.
  • This update addresses an issue that affects the Domain Name System (DNS) suffix search list. When you configure it, the parent domain might be missing.
  • This update adds support for long URL lengths of up to 8196 characters.
  • This update addresses an issue that might occur when the Input Method Editor (IME) is active. Applications might stop responding when you use the mouse and keyboard at the same time.
  • This update addresses an issue that occurs when you open Task View. It causes the desktop to stop responding.
  • This update addresses an issue that degrades a memory location. The issue occurs when you use certain HD audio controller hardware.
  • This update addresses an issue that affects MSInfo.exe. It reports the wrong enforcement status of the Windows Defender Application Control (WDAC) user mode policy.
  • This update addresses an issue that affects certain systems that have firmware Trusted Platform Modules. (TPM). This issue stops you from using AutoPilot to set up those systems.
  • This update addresses an issue that affects printing in landscape mode in Microsoft Edge. The print output is incorrect. This issue occurs when you use Microsoft Defender Application Guard.
  • This update addresses an issue that affects the Resilient File System (ReFS) MSba tag. The issue causes a nonpaged pool leak.
  • This update addresses an issue that affects the Resilient File System (ReFS). The issue causes high nonpaged pool usage, which depletes system memory.
  • This update changes how you enable the Windows diagnostic data processor configuration in preparation for EU Data Boundary support. To learn more, see Enable Windows diagnostic data processor configuration.

The update is optional and is only offered via Windows Update if the user explicitly checks for updates in the settings page and then selects the optional update for download and installation. The update can also be downloaded and installed from the Microsoft Update Catalog. The latest Servicing Stack Update (SSU) is integrated. Microsoft lists known issues with this update in the support article. Further details, including the prerequisites for installation, can be found in the support article in case of doubt.

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