Related topics
Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.

Release Date:



OS Build 17763.5936

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 10, version 1809, see its update history page.  


  • This update addresses security issues for your Windows operating system. 


This security update includes improvements. When you install this KB: 

  • This update affects the version of curl.exe that isin Windows. The version number is now 8.7.1.

  • This update addresses an issue that affects lsass.exe. It stops responding. This occurs after you install the April 2024 security updates on Windows servers.

  • This update addresses an issue that affects lsass.exe. It leaks memory. This occurs during a Local Security Authority (Domain Policy) Remote Protocol (LSARPC) call.

  • Starting in this update, File Explorer adds the Mark of the Web (MoTW) tag to files and folders that come from untrusted locations. When MapUrlToZone classifies a file as “Internet,” that file also gets this tag. Because of this change, the “LastWriteTime” time stamp is updated. This might affect some scenarios that rely on file copy operations.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the new Security Update Guide website and the June 2024 Security Updates.

Windows 10 servicing stack update (KB5039335) - 17763.5920

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

Known issues in this update



After installing KB5039217, released June 11, 2024, you might observe a change in language for context menus and dialog buttons in Windows applications. Parts of the UI might display in English when English is not set as the Windows display language. In addition, font size might change for the names of tabs and buttons.

For instance, you might see the language change when you right click on a Windows application such as Notepad or Explorer. You might observe that the Notepad menu is displayed in the system’s set display language but the entries in the context menu appear in English. Similarly, when you right click a file in Explorer and select the Properties option from the menu, the ‘OK’, ‘Cancel’ and ‘Apply’ buttons might be displayed in English.

This issue is not likely to be encountered by Windows Home users since the Windows version affected by this issue reached end of servicing for Home and Pro editions years ago. The affected version has supported editions for organizations and IT environments.

This issue is addressed in KB5040430.​​​​​​​

How to get this update

Before you install this update

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions


You must install the August 10, 2021 SSU (KB5005112) before installing the LCU. 

Install this update

To install this update, use one of the following Windows and Microsoft release channels.


Next Step


None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update.


Next Step


None. This update will be downloaded and installed automatically from Windows Update for Business in accordance with configured policies.


Next Step


To get the standalone package for this update, go to the Microsoft Update Catalog website.


Next Step


This update will automatically sync with Windows Server Update Services (WSUS) if you configure Products and Classifications as follows:

Product: Windows 10

Classification: Security Updates

If you want to remove the LCU

To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.

Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5039217.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5039335) - version 17763.5920 

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!