The document outlines the 5 step process to install Comodo Free Internet Security:
1) Uninstall any existing antivirus software and download the Comodo installer.
2) Select the language and customize installation settings such as email notifications.
3) Choose optional additional programs to install like Comodo GeekBuddy.
4) Installation will begin and a restart will be required for full effect.
5) After restart, the virus database will auto-update and optional trial of Pro version can be selected.