KB5000842 [Manual Download] Windows 10 21H1, 20H2, 2004 - Edge Legacy will be removed [Updated 30-03-2021]


[Update 30-03-2021]: With the patch KB5000842, a new optional quality update for Windows 10 versions 20H2 and 2004 is now available for download. Microsoft uses it to solve more than 50 problems and remove the old Edge browser (legacy) from the operating system.

After various tests in the beta and release preview channel, the final update to Windows builds 19041.906 (2004) and 19042.906 (20H2) can now be downloaded. Due to its size, the cumulative update KB5000842 was not expected until Patch Day in April, but work on it seems to have been completed early. In addition, the update includes a servicing stack update (SSU) that is intended to ensure and improve the reliability of the installation of future patches.

Despite a long list of improvements, Windows 10 users will have to forego new features with this update. To do this, more than 50 errors are eliminated. Microsoft addressed several issues, including with high-DPI and HDR monitors when using touch keyboards and 7.1 audio as well as the synchronization of one-Drive. Excessive memory consumption by explorer.exe should also be eliminated. One of the most noticeable changes to the KB5000842 update is the removal of the old Microsoft Edge (Legacy). After the patch installation, only the newer Chromium version of the browser is available.

The download of Windows 10 builds 19041.906 (2004) and 19042.906 (20H2) can now be initiated using the Windows update function. Due to its status as an optional quality update, there is currently no automatic installation.

Highlights of Windows 10 update KB5000842 (DeepL translation)

  • Updates a zoom issue encountered when using Microsoft Edge IE mode on devices that use multiple high DPI monitors.
  • Updates an issue where high dynamic range (HDR) screens appear much darker than expected.
  • Updates an issue that causes video playback in duplicate mode to be out of sync when using multiple monitors.
  • Updates an issue where filtering search results in File Explorer resulted in nothing or "Computing Filters" showing indefinitely.
  • Updates an issue where the split layout for the touch keyboard is not available when you rotate a device to portrait mode.
  • Informs users when a child account in the Family Safety plan has administrative rights.
  • Updated an issue that prevents you from closing Toast notifications using the Close button on touchscreen devices.
  • Updates an issue with 7.1 channel audio technology.
  • Updates an issue that causes a device to stop working when you delete files or folders that OneDrive is syncing.
  • Addresses an issue with a heap leak that could cause explorer.exe to consume large amounts of memory.
  • Removes the Microsoft Edge legacy desktop application that is no longer supported and installs the new Microsoft Edge.

[Update 29-03-2021]: Microsoft has now made KB 5000842 available for everyone to download as a non-security-relevant update. Compared to the update from 25.03. nothing has changed. The update can now be installed as * .msu.

If you have already installed the previous update, you don't need to do anything anymore. As usual, the * .msu contains the update and also the SSU. Manual downloads are listed below.

[Update 25-03-2021]: Microsoft has renewed KB5000842 for Windows 10 21H1, 20H2 and 2004 again. The new version number is 19043.906, 19042.906 and 19041.906.

If the changelog changes, we will add the changes. The manual downloads of KB5000842 follow immediately.

[Original 16-03-2021⬇️

Microsoft yesterday evening made a non-security-relevant update (KB 5000842) available for download for Windows 10 21H1, 20H2 and 2004, currently still in beta. The new version number is 19043.899, 19042.899 and 19041.899.

With this update, Microsoft is now removing Microsoft Edge (Legacy) from the system. And as you can see from the very long list, a lot of problems have been fixed.


Known issues for KB5000842

  • Currently none.
  • As always, you can find the outstanding problems here:
  • Windows 10 21H1, 20H2 and 2004 - Overview of known and fixed problems

Problems fixed by KB5000842

  • We fixed a zoom issue that occurs when using Microsoft Edge IE mode on devices that use multiple high DPI monitors.
  • We allowed administrators to use Group Policy to enable advanced keyboard shortcuts, including Ctrl + S, for users in Microsoft Edge IE mode.
  • We fixed an issue that prevented the icon for a Toast Collection from appearing in the Action Center when the URI of the icon file contains spaces.
  • We fixed an issue that could make high dynamic range (HDR) screens appear much darker than expected.
  • We fixed an issue resulting in duplicate mode video playback out of sync when using multiple monitors.
  • We fixed an issue that could cause applications to stop working while typing Japanese characters using the Microsoft Japanese Input Method Editor (IME) in Compatibility Mode.
  • We fixed an issue that could cause a device to become unresponsive during hybrid shutdown.
  • We fixed an issue preventing users from customizing or turning off the touchpad due to administrative settings.
  • We fixed a window rendering issue that caused content in a window to blink frequently when using FlipEx.
  • We fixed an issue with the display of windows where the contents of a window would often blink when using Multi-Plane-Overlay (MPO).
  • We fixed an issue with Japanese input that occurs when switching focus between fields in Microsoft Edge.
  • We fixed an issue where filtering search results in File Explorer resulted in nothing or “Computing Filters” showing indefinitely.
  • We fixed an issue that prevented the split layout for the touch keyboard from being available when rotating a device to portrait mode.
  • We've notified users when a child account in the Family Safety plan has administrative rights.
  • We fixed an issue preventing you from being able to close Toast notifications using the Close button on touchscreen devices.
  • We fixed an issue with a heap leak that could cause explorer.exe to consume large amounts of memory.
  • We have updated the Volgograd, Russia time zone from UTC + 4 to UTC + 3.
  • We have added a new time zone, UTC + 2: 00 Juba, for the Republic of South Sudan.
  • We fixed an issue with the Windows event log forwarding client returning the first matching certificate without checking private key permissions. With this update, the Windows Event Log Forwarding client only selects the client's certificate if the network service has read rights for the private key.
  • We fixed an issue causing PowerShell-based monitors to stop working when you enable transcription on the systems.
  • We fixed an issue that could cause BranchCache to stop working when you activate Windows with a Cloud Solution Provider (CSP) license.
  • We fixed an issue preventing Windows 10 Home Edition devices from upgrading to Windows 10 Pro Education Edition using Mobile Device Management (MDM) services such as Microsoft Intune.
  • We fixed an issue preventing App-V applications from opening and producing error 0xc0000225.
  • We fixed an issue where some devices signed in to an MDM service cannot sync if the device manufacturer name contains a reserved character.
  • Fixed an issue with using a Configuration Service Provider (CSP) policy to configure a custom setting to check for other login / logout events. The custom setting will not take effect.
  • Fixed an issue that could cause a system to stop working if there was no Trusted Platform Module (TPM) in the system. The error code in TpmTasks.dll! TrackTPMStateChanges is c0000005.
  • We fixed an issue resulting in multiple instances of exe running on a system when AppLocker is enabled and the system is not on the internet.
  • We fixed an issue with credentials roaming when Windows Hello for Business is enabled.
  • We fixed an issue that was preventing performance monitoring tools from displaying logged data for single-occurrence counter objects.
  • We fixed an issue preventing the Chromium-based Microsoft Edge from working. This problem occurs when Microsoft Edge is used in combination with Microsoft App-V and fonts are enabled within the virtual environment.
  • We fixed an issue that could cause a black screen or delay in signing in to hybrid Azure Active Directory joined machines. In addition, there is no access to login.microsoftonline.com.
  • We fixed an issue causing the system to stop working and generating error code 0xC9.
  • We fixed an issue with 7.1 channel audio technology.
  • We fixed an issue where Caps Lock locks unexpectedly when using RemoteApp. 31259510
  • We've enabled Windows to pull in updated printer capabilities to ensure users have the correct set of print options to choose from.
  • We have updated support for hole punch and stapler positions for long edge print jobs in the first paper feed direction on certain printers.
  • We fixed an issue that could cause File Explorer and other applications to stop responding for several minutes. This problem occurs after a client reconnects to the corporate network and tries to access file shares on the corporate network using mapped drives.
  • We fixed an issue preventing Server Message Block 1 (SMB1) clients from accessing the SMB share after restarting the LanmanServer service.
  • We fixed an issue that could cause the cluster's network interface to stop working for a short period of time. As a result, the network interface controller (NIC) is marked as failed. When the network is operational again, the system may not recognize that the NIC is working and the NIC may remain in a failed state.
  • We fixed an issue logging into a device that is in the current domain by using the default user profile of a device that is in a different but trusted domain. The profile service of the current domain cannot get the default user profile from the trusted domain and instead uses the local default user profile.
  • We fixed an issue that caused a device to stop working when you delete files or folders that OneDrive is syncing.
  • We fixed an issue preventing Windows from activating Windows 10 version 2004 using the OA 3.0 key after installing KB4598291.
  • We fixed an issue with evaluating the compatibility status of the Windows ecosystem to ensure application and device compatibility for all Windows updates.
  • We removed the legacy Microsoft Edge desktop application, which is no longer supported, and installed the new Microsoft Edge. For more information, see New Microsoft Edge Replaces Microsoft Edge Legacy with the Windows 10 Update Tuesday release in April.
  • We fixed an issue preventing users from using Remote Desktop Protocol (RDP) to connect to a Windows Server 2019 device that is in Desktop Experience mode.
  • We fixed an issue that allows our corporate partners to work with the Microsoft Support Program to create custom remedial actions.
  • We fixed an issue that could result in a blue screen and produce the APC_INDEX_MISMATCH error when trying to print to certain printers using some apps.
  • We fixed an issue with an HTTP keep-alive connection in Azure Front Door. After completing a previous request and response to keep the connection open, Azure Front Door tries to use the connection again. After an idle timeout, a race condition can occur that closes the Transmission Control Protocol (TCP) connection. As a result, the client might fail with an invalid server response.
  • We fixed an issue resulting in Remote Desktop sessions ending unexpectedly.
  • blogs.windows

Manual download of the ssu-19041.897


Manual download of KB5000842

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