Manual updates
To manually update the signature definitions file, you need to first go to the Support web site at https://support.fortinet.com. Once logged in, select FortiGuard Service Updates from the Download area of the web page. The browser will present you the most current antivirus and IPS signature definitions which you can download.
Once downloaded to your computer, log into the FortiGate unit to load the definition file.
To load the definition file onto the FortiGate unit
1. Go to System > Config > FortiGuard.
2. Select the Update link for either AV Definitions or IPS Definitions.
3. Locate the downloaded file and select OK.
The upload may take a few minutes to complete.
See Also