KB5013942 Windows 10 21H2, 21H1, and 20H2 update

Cumulative update May 2022 for Windows 10 20H2, 21H1, and 21H2 KB5013942 bug fixes, changes, known issues, direct download link, and ways to install.


There is a tradition that Microsoft releases Windows updates on the second Tuesday of every month for all the components. These updates are called Security patch and the products that receive them are Windows 10, Windows 11, .Net Framework, Windows Apps, Windows Office Media, Windows Fundamentals, Windows Cryptography, the Windows AI Platform, Windows Hybrid Cloud Networking, Windows Input and Composition, and other. A Security patch is developed on the base of threats and arbitrary codes found to cause security breaches in the previous month. The releases basically protect the operating system and other products all day along. Following this tradition, May 2022 cumulative update Windows 10 21H2, 21H1, and 20H2 is available to download and install and the versions are getting them. KB5013942 is the release that changes Windows 10 21H2, 21H1, and 20H2 versions to 19044.1706, 19043.1706, and 19042.1706 respectively.

Full name of this May 2022 security patch is 2022-05 Cumulative Update for Windows 10 for x64-based System (KB5013942) in which x64 is variable and this can also be x86 or ARM64.

May 2022 patch Tuesday update KB5013942 for Windows 10 21H2, 21H1, and 20H2

Here is the KB 5013942 changelog –

Bug fix and change

This update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.

Known issues

Symptoms Workaround
In the circumstance when you have obtained the version using a custom ISO image or custom offline media might there will be a fault regarding the browser Microsoft Edge. The persistent legacy version of this app will be eradicated but the Chromium version will not be installed.  The drawback occurs when the ISO images or custom offline media are created by slipstreaming this update into the image without having installed the copy of standalone Servicing Stack Update 29/03/2021 or later.

Remark – In case, you have attached outright to Windows Update to receive updates the system would not have been not affected. For instance, Windows Update for Business.

If you want to overcome this mess first slipstream SSU 29/03/2021 or further into the custom offline media or ISO image. Furthermore, slipstream the LCU means Cumulative Update. For this purpose, you will have to unpack the SSU from the blend of SSU and LCU for Windows 10 v20H2 and v2004. Unpack the SSU using the steps –

Uncompress the cab from the MSU through this command line (via the package for KB5013942 as an instance): expand Windows10.0-KB5013942-x64.msu /f:Windows10.0-KB5013942-x64.cab <destination path>

Unpack the Servicing Stack Update from the earlier extracted cab via this command line: expand Windows10.0-KB5013942-x64.cab /f:* <destination path>

You will then get the SSU cab, in this instance named SSU-19042.1706-x64.cab. Slipstream this file into your offline image first, then the Latest Cumulative Update

Subsequent to receiving the 21/06/2021 patch named KB5003690), you might not fail to install the 06/07/2021 patch (KB5004945) or later. Although, you will come across the error code – PSFX_E_MATCHING_BINARY_MISSING. To know more go to – KB5005322.
Trailing getting this update, an authentication fault occurs when connecting to devices in an untrusted domain through Remote Desktop. The problem is that connections might fail to authenticate through smart card authentication. On contrary, an error comes across saying- “Your credentials did not work. The credentials that were used to connect to [device name] did not work. Please enter new credentials.”. Either you may also get the error “The login attempt failed” in red. This issue is extricated via KIR aka Known Issue Rollback. Please memorize that it might take a maximum of 24 hours for the fix to propagate automatically to non-managed personal devices and non-managed business devices. However, you can restart to minimize the time. Enterprise-managed users should download and install a special Group Policy from the below link –

  1. Windows Server 2022
  2. Windows 10 2004, Windows 10 20H2, Windows 10 21H1, Windows 10 21H2

How to download KB5013942 on Windows 10 20H2, 21H1, 21H2 and install

1] Via auto Windows update

  1. Press Windows and I.
  2. Select Update & Security.
  3. On the next page of the Settings app, click on Check for updates. In a while, the update will be downloaded automatically depending on your internet connection speed.
  4. Upon completion, you will get a dialog, click Restart now on that.

2] Manually through Microsoft update catalog

  1. Click on KB5013942 direct download link.
  2. Once you reach the Microsoft update catalog, see the appropriate file for your computer. For example, if your system is 64-bit you should download the update for x64.
  3. Click on Download.
  4. A page will pop up separately; click the only link located there.
  5. After the downloading of the patch is completed, double-click on the .MSU file from your desktop.
  6. Click Yes on the confirmation prompt.

That’s all!!

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Topics:  Windows update
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.