KB5043064: Windows Installer Update: UAC Prompts for Credentials; Update Scripts Needed

September 10, 2024—KB5043064 (OS Builds 19044.4894 and 19045.4894)

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

Improvements

• [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.