July 9, 2024—KB5040448 (OS Build 10240.20710) - EXPIRED

Highlights

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

Improvements 

This security update includes quality improvements. Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.

• ​​​​​​​[Republic of Turkey name] The new, official name is the Republic of Türkiye.

• [Remote Authentication Dial-In User Service (RADIUS) protocol] This issue is related to MD5 collisions. For more information, see KB5040268.

• [BitLocker] This update adds PCR 4 to PCR 7 and 11 for the default Secure Boot validation profile. See CVE-2024-38058 for more information.

• This update changes how IT administrators should set up remote paths for file shortcut icons (.LNK files). The set up now requires that you configure the policy “Allow the use of remote paths in file shortcut icons”. If you don’t configure this policy, icons on the Start menu, Windows desktop and taskbar will fail to render after you install this update or subsequent updates.

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 July 2024 Security Updates.

Known issues in this update

How to get this update

EXPIRATION NOTICE

IMPORTANT As of January 27, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows.