Windows 10 Preview Update KB5015878 (July 26, 2022)

Windows[German] has released an optional cumulative (preview) update KB5015878 as of July 26, 2022 (D-Week). This is intended to fix numerous bugs in Windows Server version 20H2 as well as Windows 10 version 20H2 – 21H2. Below I provide an overview regarding these updates for Windows 10.


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The information about the updates can be found in the Windows 10 update history page. It should be noted that these updates are so-called preview or preview updates. These are optional and must be manually triggered for download and installation by default. ie Informationen zu den Updates finden sich in der Windows 10 Update-History-Seite.

Windows 10 Preview Update KB5015878

Cumulative preview update KB5015878 is available for Windows 10 Enterprise 20H2, Windows 10 21H1 – 21H2 and Windows Server version 20H, lifting the builds to 19042.1865, 19043.1865 and 19044.1865. Here's the list of highlights that Microsoft lists:

  • New! Gives you the option to receive important notifications when focus assist is on. Focus assist is like a do not disturb mode that hides notifications.
  • New! Restores functionality for Windows Autopilot deployment scenarios that are affected by the security mitigation for hardware reuse. This update removes the one-time use restriction for self-deploying mode (SDM) and pre-provisioning (PP). This update also re-enables any User Principal Name (UPN) display in user-driven mode (UDM) deployments for approved manufacturers.
  • Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.
  • Adds functionality that improves the OS upgrade experience.
  • Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.
  • Addresses an issue that affects certain games that use the XAudio API to play sound effects.
  • Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions.
  • Addresses an issue that prevents certain troubleshooting tools from opening.

The printing issues caused by the June 2022 preview update or the July 12, 2022 security update were not addressed. The list of new features as well as corrected bugs is also quite extensive:

  • New! Provides the ability for you to consent to receive important notifications when focus assist is on.
  • Reduces the overhead of resource contention in high input/output operations per second (IOPS) scenarios that have many threads contending on a single file.
  • Improves the reliability of a push-button reset after an OS upgrade.
  • Addresses an issue that makes the tenant restrictions event logging channel inaccessible if you remove the EN-US language pack.
  • Addresses an issue that prevents certain troubleshooting tools from opening.
  • Updates the Remove-Item cmdlet to properly interact with Microsoft OneDrive folders.
  • Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.
  • Adds functionality that caches additional audio endpoint information to improve the OS upgrade experience.
  • Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.
  • Addresses an issue that affects certain games that use the XAudio API to play sound effects.
  • Addresses an issue that causes port mapping conflicts for containers.
  • Addresses an issue that causes Code Integrity to continue trusting a file after the file has been modified.
  • Addresses an issue that might cause Windows to stop working when you enable Windows Defender Application Control with the Intelligent Security Graph feature turned on.
  • Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions as measured dots per inch (DPI).
  • Addresses an issue that prevents the Storage Migration Service (SMS) from completing inventory on servers that have many shares. The system logs error event 2509 in Microsoft-Windows-StorageMigrationService/Admin channel (ErrorId=-2146233088/ErrorMessage="Invalid table id").
  • Addresses an issue that causes the Windows profile service to fail sporadically. The failure might occur when signing in. The error message is, "gpsvc service failed to sign in. Access denied".

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

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2 Responses to Windows 10 Preview Update KB5015878 (July 26, 2022)

  1. Marco says:

    Question by this Topic:
    New! Restores functionality for Windows Autopilot deployment scenarios that are affected by the security mitigation for hardware reuse. This update removes the one-time use restriction for self-deploying mode (SDM) and pre-provisioning (PP). This update also re-enables any User Principal Name (UPN) display in user-driven mode (UDM) deployments for approved manufacturers.
    —————————————————-
    What is here meaning with " approved manufacturers". I understand it by approved Hardware, because TPM 2.0, SecureBoot,.. and so…
    But, approved manufactures?

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