You receive the error ‘The Installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 29506’ when installing Microsoft SQL Server Management Studio Express


You need to have administrative permissions to install the software.

To do this you can hold down the Shift key whilst selecting the setup file and select either ‘Run As’ or in Windows 2008 ‘Run as different user’


Enter the local Administrator credentials and the installation should now complete


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