MC282497 – August 2021 Windows non-security preview “C” release available all supported versions for Windows 10 (archived)

Admin impact, Prevent Or Fix Issue, Windows

check before: 2021-09-02

Product:

Microsoft Endpoint Manager, Windows, Windows Server

Platform:

mobile, Windows Desktop, World tenant

Status:

Change type:

Admin impact

Links:

Details:

The August 2021 non-security preview release, referred to as our "C" release, is now available for Windows 10, version 21H1 and all supported versions of Windows. See the Release Notes associated to this update for information on the contents of this release. Please note the English versions of the Release notes associated with these updates might publish with a delay of up to an hour after the updates are available for download. The remaining languages will follow in the coming weeks. To learn more about the different types of monthly quality updates, see our Windows 10 quality updates primer.

IMPORTANT: Starting in October 2021, there will no longer be non-security releases (known as "C" releases) for Windows 10, version 1909. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for Windows 10, version 1909.

Improvements and Fixes for Windows 10, version 21H1 update:

This release enables over 1400 new mobile device management (MDM) policies. With them, you can configure policies that Group Policies also support. These new MDM policies include administrative template (ADMX) policies, such as App Compat, Event Forwarding, Servicing, and Task Scheduler. Starting in September 2021, you can use the Microsoft Endpoint Manager (MEM) Settings Catalog to configure these new MDM policies. For more information, see The latest in Group Policy settings parity in Mobile Device Management.
Addresses an issue that prevents users from tracking Distributed Component Object Model (DCOM) activation failures.
Addresses a threading issue that might cause the Windows Remote Management (WinRM) service to stop working when it is under a high load.
Addresses an issue that causes the Windows Management Instrumentation (WMI) provider host process to stop working. This occurs because of an unhandled access violation that occurs when using the Desired State Configuration (DSC).
Addresses an issue that causes file migration between Distributed File System (DFS) paths that are stored on different volumes to fail. This issue occurs when you implement the migration using PowerShell scripts that use the Move-Item command.
Addresses an issue that prevents you from writing to a WMI repository after a low memory condition occurs.
Addresses an issue that resets the brightness for standard dynamic range (SDR) content on high-dynamic range (HDR) monitors. This occurs after you restart the system or reconnect to the system remotely.
Addresses an issue that might cause an external monitor to display a black screen after Hibernation. This issue might occur when the external monitor connects to a docking station using a certain hardware interface..

For instructions on how to install this update for your operating system, see the KB for your OS listed below:

Windows 10, version 21H1: KB5005101
Windows 10, version 20H2: KB5005101
Windows 10, version 2004: KB5005101
Windows 10, version 1909, Windows Server, version 1909: KB5005103
Windows 10, version 1809, Windows Server, version 1809, Windows Server 2019: KB5005102

Change Category:
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Scope:
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Release Phase:

Created:
2022-02-11

updated:
2022-08-27

Task Type