Download the installer from the following link: http://download.sp.f-secure.com/SE/...etworkInstaller_AV2013-5XZWR-H89Z4-P3S6H_.exe The installer is around 1.1 MB, run the installer and install the product. The installer during installation activates 365 day trail, so you will get F-Secure Antivirus 12 months protection for 1 computer for free. To know whether you have 365 day trail or license status, click F-secure icon and select “View my Subscriptions”.