Before you attempt to download the FortiGate VM, ensure you have the following:

FortiGate-VM allows you to run Fortinet's Next-Generation Firewall features in a virtual environment such as VMware Workstation, VMware ESXi, VirtualBox, or KVM. It is widely used for labs, testing configurations, and software-defined network security.

Fortinet hosts all official virtual appliance images on the Fortinet Customer Service & Support site. You cannot download these images from public mirrors; you must use an official account.

Once you have the .ovf or .vmdk file: