SQL Server Express with Advanced Services

End User License Agreement | Privacy Statement
Some components in Microsoft SQL Server 2012 Express have two different methods to complete the installation process:
·  Attended Installation – an interactive user interface will guide you through the set-up process and obtain all of the information and consent required to complete the installation. This includes the displaying, acknowledgement, and archiving of the applicable SQL Server license terms.
·  Un-attended Installation – this is a DOS Command Line set-up process that does not have an interactive user interface to guide you through the set-up process. In this case, you will be required to enter a parameter during installation that indicates your acceptance of the license terms.