Norton Internet Security 2012/13 re-install help?

Got a laptop here with NIS 2013 on it the laptop is going in for repair and full format and reinstall of windows. The re-install files for NIS 2012/13 are on the C Drive and will be deleted from the repair. Just wounding if can download it again to re-install as my copy of NIS 2012/13 is a digital download and for 3PCS from your web site.