Install of SQL Express from Microsoft website
You must download the installation program With Tools
32 bit Windows ENU\x86\SQLEXPRWT_x86_ENU.exe
64 bit Windows ENU\x64\SQLEXPRWT_x64_ENU.exe
When you start the installation you must select Perform a new installation of SQL Server 2012
Accept the license terms
Confirm Database Engine Services is not selected and Management Tools - Basic are selected.
Click next on error report.
Management Tools will now be installed, when complete click Close.