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If this per-machine system policy is set to "1", the installer prevents non-administrators from using User Account Control (UAC) Patching for any application installed on the computer. When the per-machine system policy is not set or set to 0, non-administrators can apply least-privilege user patches to applications that are enabled for least-privilege user account patching.
Use the MSIDISABLELUAPATCHING property to prevent the least-privilege patching of an application.
The DisableLUAPatching policy is available beginning with Windows Installer version 3.0.
Registry Key
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer
Data Type
REG_DWORD
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