Patchday Windows 10-Updates (March 10, 2020)

[German]On March 10, 2020 (second Tuesday of the month, Patchday at Microsoft) several cumulative updates for the supported Windows 10 builds were released. Here are some details about the respective updates.

A list of the updates can be found on this Microsoft website. I have extracted the details below. The update installation requires an existing current Servicing Stack Updates (SSUs). Microsoft now publishes an overview of current Servicing Stack Updates (SSUs) under ADV990001 (if it is not up to date, please check the Microsoft Update Catalog for Servicing Stack Updates). 

Updates for Windows 10 Version 190x

Microsoft provides the same update packages for the Windows 10 builds 1903 and 1909 that were released in 2019. The following updates are available for the Windows 10 May 2019 Update (Version 1903) and the Windows 10 November 2019 Update (Version 1909).

Update KB4540673 for Windows 10 Version 190x

Cumulative Update KB4540673 raises the OS build to 18362.719 (Windows 10 V1903) or 18363.719 (Windows 10 V1909). The update is available for Windows 10 version 1903, for Windows 10 version 1909, and for Windows Server version 1903 and Windows Server version 1909. It contains quality improvements but no new operating system features. Here is the list of improvements, referred to by Microsoft as highlights: 

• Updates to improve security when using Microsoft Edge and Internet Explorer.
• Updates for verifying user names and passwords.
• Updates to improve security when using external devices (such as game controllers, printers, and web cameras).

The following fixes and improvements has been added to Windows 10 version 1909, which are identical to version 1903 (update is also available for the Hololens)

• Addresses an issue that prevents certain users from upgrading the OS because of corrupted third-party assemblies.
• Security updates to Windows App Platform and Frameworks, Windows Media, Windows Silicon Platform, Microsoft Edge, Internet Explorer, Windows Fundamentals, Windows Authentication, Windows Peripherals, Windows Update Stack, and Windows Server.

This update is automatically downloaded and installed by Windows Update. This update is also available in the Microsoft Update Catalog and via WSUS. Microsoft strongly recommends that you install the latest service stack update (SSU) for your operating system before you install the latest cumulative update (LCU). For this update, Microsoft reports a known issue with 32-bit applications in the support article.

Microsoft has also released an update directly to the Windows Update client to improve its reliability. This is rolled out outside of Windows Update if the machine is compatible and is not an LTSC variant and updates have not been blocked by GPO.

Servicing Stack Update KB4541338

On March 10, Microsoft also released the SSU KB4541338 for Windows 10 versions 1903 and 1909. Microsoft writes about this:

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

The SSU should be installed before installing further cumulative updates.

Updates for Windows 10 Version 1809

The following updates are available for Windows 10 October 2018 Update (Version 1809) and Windows Server 2019.

Update KB4538461 for Windows 10 Version 1809

Cumulative update KB4538461 raises the OS build (according to MS) to 17763.1098 and includes quality improvements but no new operating system features. Here is the list of improvements, called highlights by Microsoft: 

• Updates to improve security when using Microsoft Edge and Internet Explorer.
• Updates for verifying user names and passwords.
• Updates to improve security when Windows performs basic operations.
• Updates for storing and managing files.
• Updates to improve security when using external devices (such as game controllers, printers, and web cameras).

The following fixes and improvements were added to the Windows version:

Security updates to Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Media, Windows Silicon Platform, Microsoft Edge, Internet Explorer, Windows Fundamentals, Windows Authentication, Windows Kernel, Windows Core Networking, Windows Storage and Filesystems, Windows Peripherals, Windows Update Stack, and Windows Server.

This update is automatically downloaded and installed by Windows Update. This update is also available in the Microsoft Update Catalog. Microsoft strongly recommends that you install the latest service stack update (SSU) for your operating system before you install the latest cumulative update (LCU). Microsoft lists several known issues that this update causes. For details, see the KB article. 

Microsoft has also released an update directly to the Windows Update Client to improve its reliability. This is rolled out outside of Windows Update if the machine is compatible and not an LTSC variant and updates have not been blocked by GPO.

Updates for Windows 10 Version 1507 till 1803

For Windows 10 RTM up to version 1803, various updates are available for the LTSC versions and, if necessary, the Enterprise versions. The Home and Pro versions, however, have been dropped from support. Here is a short overview.

• Windows 10 Version 1803: Update KB4540689 is only available for Enterprise and Education. The update raises the OS build to 17134.1365. It includes the fixes mentioned in the KB article. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article.
• Windows 10 Version 1709: Update KB4540681 is only available for Enterprise and Education. The update raises the OS build to 16299.1747. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article.
• Windows 10 Version 1607: Update KB4540670 is now available only to Enterprise LTSC. The update raises the OS build to 14393.3564. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article.
• Windows 10 Version 1507: Update KB44540693 Update KB44540693 is available for the RTM version (LTSC) The update raises the OS build to 10240.18486. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available for download in the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article. Details can be found in the KB article.

There was no update for Windows 10 V1511 and V1703, because these versions were dropped from support. Details about the above updates can be found in the respective Microsoft KB articles.

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