the file to the target machine via USB or local network.
If you only have access to the (.exe) on a machine that does have internet, you can sometimes "trick" it: Run the online installer. forticlientvpnonlineinstaller-6.4 offline installer
: Right-click the .exe or .msi and select "Run as Administrator." the file to the target machine via USB or local network
: If the VPN won't connect after an offline install, check the Device Manager . Look for the "Fortinet Virtual Adapter." If it has a yellow exclamation mark, you may need to disable Secure Boot in your BIOS or update your Windows root certificates. Look for the "Fortinet Virtual Adapter
Look for a newly created folder containing a large .msi file. Copy that file—that is your . Installation Steps
While newer versions (7.0+) are available, version remains a "sweet spot" for many IT administrators. It is known for its stability and compatibility with older FortiGate firmware. Using the offline version is essential for: Air-gapped systems with no external web access. Bulk deployment via USB or network shares.