Download FortiClient Lite
FortiClient Lite was specially designed for people who have computers that need to safeguard as many system resources as possible. There are a lot of users around the world who can't afford a new and faster computer with sophisticated technology. In order to keep their old computer working as a brand new one, they need to install light programs that are low resource consumers.
FortiClient Lite is the tool you need! It's light and fast. It comes with a user friendly interface capable to detect any threat, virus or intruder attempting to get into your system.
Give it a try!