Once downloaded, run the following command using an administrator command prompt (cmd.exe run as administrator):
SSDTSetup.exe /layout <destination>
Where <destination> is the location you wish to create the administrative install point (e.g on a USB drive, a LAN drive or other accessible location). NOTE: You will need approximately 1.8GB of free space at for the full install point because it includes all possible components that might be required.
To use the install point once created, simply run SSDTSetup.exe from the <destination> location with no arguments. This will use the install point rather than attempting to download new copies of the relevant chained components.
Download SSDT preview as an ISO image (optional)
An ISO image of SSDT preview can be used as an alternative way to install SSDT preview or to set up an Administrative Installation point. The ISO is a self-contained file that contains all of the components needed by SSDT preview and it can be downloaded using a restartable download manager, useful for situations with limited or less reliable network bandwidth. Once downloaded, the ISO can be mounted as a drive or burned to a DVD.