Once downloaded, follow the installation instructions for your platform:
FortiClient 5.6.6 is a significant release that offers a range of new features and enhancements. Some of the key features and improvements include: Forticlient 5.6.6 Download
FortiClient 5.6.6 is an older version, and it's recommended to use the latest version available for security and compatibility reasons. Forticlient 5.6.6 Download