Error message when you install an .msu update package on a computer that is running Windows Vista: "The Windows Modules Installer must be updated before you can install this package"

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SYMPTOMS

When you install an .msu update package on a computer that is running Windows Vista, you may receive the following error message:

The Windows Modules Installer must be updated before you can install this package. Please update the Windows Modules Installer on the computer, then retry Setup.

When you use a script to install the .msu update package, the installation fails. When this problem occurs, the Wusa.exe process returns error code 0x800f0823.

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CAUSE

This problem occurs because the installation requires a new version of the Windows Modules Installer.

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RESOLUTION

To resolve this problem, use Windows Update to update the Windows Modules Installer.

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When you use Windows Update, the Windows Modules Installer update is required. However, when you install an .msu update package, the Setup program does not connect to Windows Update to update the Windows Modules Installer.

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