Service pack ,Hotfix and CU installation for SQL Server 2005 might fail with “Unable to install Windows Installer MSI file“

Installation of SQL Server 2005 Service pack ,Hotfix and CU  would fail fails with “Unable to install Windows Installer MSI file“ and message box “ A recently applied update failed to install” You will find below errors in setup logs. Summary.txt: Product Installation Status Product                   : Setup Support Files Product Version (Previous): Product Version (Final)  …

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