September 10, 2024—Hotpatch KB5042880 (OS Build 20348.2695)

Improvements and fixes

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.

• [Windows Installer] When it repairs an application, the User Account Control (UAC) does not prompt for your credentials. After you install this update, the UAC will prompt for them. Because of this, you must update your automation scripts. Application owners must add the Shield icon. It indicates that the process requires full administrator access. To turn off the UAC prompt, set the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer\DisableLUAInRepair registry value to 1. The changes in this update might affect automatic Windows Installer repairs; see Application Resiliency: Unlock the Hidden Features of Windows Installer.

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

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 hotpatch update. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

If you are using Windows Update or Windows Server Update Services (WSUS), the latest SSU will be installed with this update.

Install this update

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

File information

For a list of the files that are in this update, download the file information for cumulative update 5042880.

For a list of the files that are in the servicing stack update, download the file information for the SSU (KB5043167) - version 20348.2696.