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Windows 10 KB5013942 (21H2, 21H1) is out – here’s everything new

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Windows 11 KB5013942 was released because Microsoft started pushing updates for the patch Tuesday of May 2022. This release does not contain many new features, but there are enough bug fixes for everyone. Direct download links for offline installers for Windows 10 KB5013942 are also available for those unable to install patches through WU.

KB5013942 is a security update and is being pushed as part of the May 2022 Patch Tuesday cycle. Since Windows 10 is now on the back burner with Microsoft’s focus entirely on Windows 11, there are no major changes in this particular Patch Tuesday release . Of course there are the usual bug fixes and security improvements.

The previous update enabled support for Windows Search Highlights and some other improvements. On the other hand, this release doesn’t contain any noticeable change, but the tech giant says it has fixed an issue that causes Internet Explorer to stop working when you copy and paste the text.

A critical bug that causes a black screen for some people when logging in and out has been fixed. Another bug where the Microsoft OneDrive file loses focus after you rename it and hit the Enter key has been patched in this release. Likewise, Microsoft is also improving the News and Interests panel by fixing a few bugs here and there.

If you are using Windows 11, Microsoft has released a cumulative update for your device and most of the changes are identical. That’s because Windows 11 is apparently built on top of Windows 10, so most of the fixes and bugs are shared between the two operating systems.

When you check for updates, you will see one of the update warnings depending on the version of Windows 10:

2022-05 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5013942)


2022-05 Cumulative Update for Windows 10 Version 21H1 for x64-based Systems (KB5013942)

Download Links for Windows 10 KB5013942

Windows 10 KB5013942 Direct Download Links: 64-bit and 32-bit (x86)

Microsoft is offering the security update through Windows Update and Windows Update for Business, but it is still possible to manually download and install the patch from the Microsoft Update Catalog.

The Microsoft Update Catalog linked above provides direct access to the offline installation file (.msi), so you can double tap the link and start the download. It’s also worth noting that the company has made changes to the update catalog to support HTTPS requests, meaning you can now simply tap the link to start the download.

Windows 10 KB5013942 (Build 19044.1645) Full changelog


  1. Improves the Windows Secure Boot component.
  2. Fixes OneDrive issues.
  3. Performance improvements.

According to the release notes, Microsoft has fixed an issue that caused a remote desktop session to close or become unresponsive while sethc.exe was waiting for a callback. Fixed another bug where a certain feature of the Point of Sale terminal may occasionally cause operating system boot delays.

KB5013942 Windows Update

The boot delay of up to 40 minutes has been fixed in this release. Microsoft also fixed an issue where users encounter a black screen when logging in or out, and another bug causes Kerberos authentication to fail with a rather vague error message and code “0xc0030009 (RPC_NT_NULL_REF_POINTER)”.

Microsoft says it has fixed an issue where Windows could stop working when you apply a Windows Defender Application Control (WDAC) policy. Fixed another bug that causes the News & Interests widget to appear automatically even if you haven’t clicked, tapped, or moused over it.

Other bug fixes and improvements:

  • Fixed an issue where the Shift KeyUp event was passed incorrectly.
  • Fixed an issue that may occur when using Netdom.exe.
  • Fixed an issue where the wrong IME mode indicator was displayed.
  • Fixed an issue where users could not access that network drive.
  • Fixed an issue that corrupts a pool when a CSC (Client-Side Caching) cleanup method fails.
  • Fixed an issue where the operating system would use up all memory and the same issue would occur after a reboot.
  • Fixed a potential performance issue where a bug reduces the overhead of resource conflicts in high input/output operations per second (IOPS) scenarios.

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