Can't install Norton Deluxe, "Stopped working" error

Hi all

Just bought Norton Deluxe as my 360 subscription expired. Uninstalled 360 with no problems, but when I come to run the new software I get the Norton Initializing window up and then get the "Norton Security has stopped working" error message and have to close. So currently I have no antivirus or protection installed.

HP Pavilion G6 laptop, running Windows 7 SP1. Norton Deluxe installed and runs perfectly on my mums Windows 8.1 ASUS notebook and her old Windows XP PC. Always had problems with 360 on this laptop but at least I could get it installed!

Any help appreciated