Ensure you have administrative privileges to run the installer.Follow instructions on screen and choose Concurrent user license (used for on-site installation) or Authorized site license (used for off-site installation) when prompted.Once you have downloaded the file, double click on the.You cannot connect to the licence server via VPN. For on-site activation you must be connected to the UCL network (wired or wireless).These instructions work for SPSS for Windows, Mac and Linux (version 23 and above).Download SPSS from the UCL Software Database.This guide explains how to install and activate SPSS for Windows and Mac.