Forticlientvpnonlineinstaller-6.4 | Offline Installer
Perfect for locked-down workstations or air-gapped networks.
: Log in to Fortinet Support, navigate to Support > Firmware Download , select FortiClient , and choose your OS to download the full image.
The VPN-only client does not include Fortinet technical support contracts. For production environments requiring compliance and security features (AntiVirus, WebFiltering, Sandboxing), you must purchase a FortiClient EMS license and use the full-featured client, which is also available in an offline installer format via the support portal.
Once you have acquired the legitimate FortiClient_6.4.x_x64.exe (offline installer), follow these steps.
Keep the default path or choose a custom location. forticlientvpnonlineinstaller-6.4 offline installer
There are three primary methods to acquire the 6.4 offline files. Method 3 is the most reliable for IT administrators.
Click once the setup wizard completes. A system reboot is highly recommended to properly initialize the Fortinet virtual network adapters. For Enterprise IT Administrators (Silent Command Line):
The FortiClient VPN offline installer 6.4 is a standalone installer that can be used to install FortiClient on an endpoint without an internet connection.
Click . The process will run locally without downloading external files. Perfect for locked-down workstations or air-gapped networks
FortiClient VPN 6.4 is by Fortinet (end of support was in 2023/early 2024). Consider using 7.0 or 7.2 for security and feature updates. However, if 6.4 is required for compatibility, the offline installer is still available via the support portal.
Solved: FortiClient offline installer - the Fortinet Community!
FortiClient VPN Online Installer 6.4: Why You Might Need the Offline Version
Wait for it to download the files but click "Install" yet. Navigate to your %TEMP% folder. There are three primary methods to acquire the 6
If your organization uses FortiClient EMS (Endpoint Management Server) version 6.4, the offline installer is included. The EMS management console typically stores the .msi package and language transforms locally. Administrators can push the full MSI to endpoints or retrieve it from the EMS server's installation directory for manual deployment.
The official Fortinet Product Downloads page primarily distributes an online stub installer ( forticlientvpnonlineinstaller-6.4.exe ). This lightweight file is roughly 4 MB in size and requires an active internet connection to download core installation payloads dynamically.
Click or Export to save the standalone .exe or .msi package locally. Technical Specifications & System Requirements
Note: As of 2026, the 6.4 branch may be considered legacy compared to 7.x, but it remains fully supported for specific use cases. Step-by-Step Installation Guide (Windows)