Patchday: Windows 10 Updates (May 12, 2020)

[German]On May 12, 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.


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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). Meanwhile, Microsoft publishes an overview of current Servicing Stack Updates (SSUs) under ADV990001 (if it is not up to date, have the Microsoft Update Catalog search 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 KB4556799 for Windows 10 Version 190x

Cumulative Update KB4556799 raises the OS build to 18362.836 (Windows 10 V1903) or 18363.836 (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 enhancements, referred to by Microsoft as highlights:

  • Updates to improve security when using Internet Explorer and Microsoft Edge.
  • Updates to improve security when using input devices such as a mouse, keyboard, or stylus.
  • Updates for verifying usernames and passwords.
  • Updates to improve security when using Microsoft Xbox.
  • Updates to improve security when Windows performs basic operations.
  • Updates for storing and managing files.
  • Updates to improve security when using Microsoft Office products.

And there are the following fixes and improvements to Windows 10 version 1909, which are identical to version 1903 (update is also available for the Hololens)

  • Updates the 2020 start date for daylight saving time (DST) in the Kingdom of Morocco.
  • Security updates to Internet Explorer, the Microsoft Scripting Engine, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Microsoft Xbox, Microsoft Edge, Windows Fundamentals, Windows Cryptography, Windows Authentication, Windows Kernel, Windows Linux, Windows Update Stack, Windows Network Security and Containers, Windows Active Directory, Windows Storage and Filesystems, and the Microsoft JET Database Engine.

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 indicates that there are no known issues.

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.

Updates for Windows 10 Version 1809

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


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Update KB4551853 foür Windows 10 Version 1809

Cumulative Update KB4551853 the OS build to 17763.1217 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 Internet Explorer and Microsoft Edge.
  • Updates to improve security when using Microsoft Office products.
  • Updates to improve security when using input devices such as a mouse, keyboard, or stylus.
  • Updates to improve security when using Microsoft Xbox.
  • Updates for verifying usernames and passwords.
  • Updates to improve security when Windows performs basic operations.
  • Updates for storing and managing files.

An there are the following fixes and improvements to the Windows version:

  • Updates the 2020 start date for daylight saving time (DST) in the Kingdom of Morocco.
  • Adds Shell Launcher v2 to improve reliability and usability. Shell launcher v2 allows you to specify a Universal Windows Platform (UWP) app as the replacement shell. For more information, see Use Shell Launcher to create a Windows 10 kiosk.
  • Addresses an issue that prevents a call to NCryptGetProperty() from returning the correct pbOutput value when pszProperty is set to “Algorithm Group” and you are using a Trusted Platform Module (TPM) 1.2 device.
  • Security updates to Internet Explorer, the Microsoft Scripting Engine, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Microsoft Xbox, Microsoft Edge, Windows Fundamentals, Windows Cryptography, Windows Authentication, Windows Kernel, Windows Linux, Windows Update Stack, Windows Core Networking, Internet Information Services, Windows Network Security and Containers, Windows Active Directory, Windows Storage and Filesystems, and the Microsoft JET Database Engine.

This update is automatically downloaded and installed by Windows Update. This update is also available in theMicrosoft 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 a known issue that this update causes. When you install the update, you may receive the error 0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND For details, see the KB article.

Microsoft has also released an update directly to the Windows Update Client to improve its reliability. This will be 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 on the other hand have been dropped from support. Here is a short overview.

  • Windows 10 Version 1803: Update KB4556807 is only available for Enterprise and Education. The update raises the OS build to 17134.1488. 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 1709: Update KB4556812 is only available for Enterprise and Education. The update raises the OS build to16299.1868. 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 1703: Update KB4556804 is only available for the Surface Hub. The update raises the OS build to 16299.2375. The fixes mentioned in the KB article are included.
  • Windows 10 Version 1607: Update KB4556813 steht is now available only to Enterprise LTSC. The update raises the OS build to 14393.3686. 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 KB4556826 is available for the RTM version (LTSC). The update raises the OS build to 10240.18575. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available 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.

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 in case of doubt.

Similar articles:
Microsoft Office Patchday (May 5, 2020)
Microsoft Security Update Summary (May 12, 2020)
Patchday: Windows 10 Updates (May 12, 2020)
Patchday: Updates for Windows 7/8.1/Server (May 12, 2020)


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