• Microsoft releases update KB5013942 for Windows 10 21H2, 21H1, and 20H2.
  • The update bumps the version number to build 19044.1706.
  • The update KB5013942 improves servicing for Secure Boot.
  • This release also brings a lot of improvements and fixes.

As part of the Patch Tuesday for May 2022, Microsoft is now making available the update KB5013942 for computers running Windows 21H2, 21H1, and 20H2 with new fixes and changes.

The update KB5013942 bumps the version number to build 19042.1706 (20H2), 19043.1706 (21H1), and 19044.1706 (21H2), and according to the official changes, it only contains miscellaneous security improvements, plus the non-security changes previously available with the April 25 update preview, which improves the servicing for the Secure Boot components, addresses problems with a black screen during sign-in and sign-out, users unable to change expired passwords, Kerberos error, and more.

If you prefer downloading and installing the May 2022 update manually, you can download it from the Microsoft Update Catalog website.

Alongside the update for the latest version of Windows 10, the company is also making available updates for older versions of Windows 10, including for versions 1909, 1809, 1607, and 1507.

Update KB5013942 fixes and changes for Windows 10

These are the fixes and improvements available with the latest update preview of Windows 10:

Update for older versions of Windows 10

The company is also making available updates for older versions of Windows 10. For example, version 1909 received the update KB5013945 that increases the version number to build 18363.2274 and fixes several issues.

  • Added improvements for servicing the Secure Boot component of Windows.
  • Changed the timeout for Azure Active Directory (Azure AD) registration from 60 minutes to 90 minutes for hybrid Azure AD-joined Autopilot scenarios. This also addresses a race condition that causes an exception at timeout.
  • Fixed an issue that causes a remote desktop session to close or reconnection to stop responding while waiting on the accessibility shortcut handler (sethc.exe).
  • Fixed an issue that delays OS startup by approximately 40 minutes.
  • Fixed an issue that incorrectly returns Execution Policy settings from the registry.
  • Fixed an issue that causes Internet Explorer to stop working when you copy and paste text using an Input Method Editor (IME).
  • Fixed an issue that displays a black screen for some users when they sign in or sign out.
  • Fixed an issue that causes Kerberos authentication to fail, and the error is “0xc0030009 (RPC_NT_NULL_REF_POINTER)”. This occurs when a client machine attempts to use the Remote Desktop Protocol (RDP) to connect to another machine while Remote Credential Guard is enabled.
  • Fixed an issue that prevents you from changing a password that has expired when you sign in to a Windows device.
  • Fixed an issue that might cause Windows to stop working when you apply a Windows Defender Application Control (WDAC) policy that doesn’t require a restart.
  • Fixed an issue that might fail to copy the security portion of a Group Policy to a machine.
  • Fixed an issue that causes the Key Distribution Center (KDC) code to incorrectly return the error message “KDC_ERR_TGT_REVOKED” during domain controller shutdown.
  • Fixed an issue that might prevent graphics processing unit (GPU) load balancing over Remote Desktop from working as intended.
  • Fixed an issue that prevents the instantiation of the Microsoft RDP Client Control, version 11 and higher, inside a Microsoft Foundation Class (MFC) dialog.

Windows 10 version 1809 gets the update KB5013941 that brings the version number to build 17763.2928 and delivers a few fixes.

In addition, version 1607 received the update KB5013952 (build 14393.5125) addresses several problems with this release. Finally, Windows 10 version 1507 received the update KB5011491 that bumps the version number to build 10240.19297 and delivers some miscellaneous security improvements.

Download update KB5013942 for Windows 10

The update is available immediately and it will download and install automatically. However, you can always force the update from Settings > Update & Security > Windows Update, click the Check for updates button, and use the option to install the optional update.