Fortigate Firmware Download [new] - Install

The system will prompt you that a reboot is required. Confirm to start the process.

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Always download a fresh configuration backup. If the upgrade fails, this is your only way to restore your settings.

Choose FortiGate , select the Download tab, and navigate to the directory for the desired FortiOS version. fortigate firmware download install

Choose the major version (e.g., 7.4, 7.6) and then the minor version (e.g., 7.6.0).

Once the firewall completes its reboot sequence (which typically takes 3 to 7 minutes), verify that the system is operating normally.

Select FortiGate from the product dropdown menu. The system will prompt you that a reboot is required

Place the firmware .out file into the root directory of that server. Establish an SSH or console connection to the FortiGate.

Compare the checksum of the downloaded file with the one listed on the portal to ensure it's not corrupted. Phase 3: Installing the Firmware (GUI)

Disclaimer: This article provides general instructions based on current Fortinet practices as of June 2026. Always refer to official Fortinet release notes for your specific environment. Always download a fresh configuration backup

While FTP downloading is also available, HTTPS is strongly recommended as FTP is not an encrypted file transfer protocol.

In the Firmware Upgrade section, click Browse and select the .out file you downloaded.