Windows Installer 服務無法安裝升級，因為要升級的程式可能遺失或升級可能更新不同版本的程式。請檢查要升級的程式是否存在您的電腦，而且您有正確版本的升級。

The upgrade cannot be installed by the Windows Installer service because the program to be upgraded may be missing, or the upgrade may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade.