Once you have located the installer for version 6.0, the setup process is straightforward:
Q: Is FortiClient 6.0 still free for VPN?
A: Yes, the VPN-only functionality remains free without a license.
Q: Can I use FortiClient 6.0 with FortiOS 7.4?
A: Not recommended. FortiOS 7.4 drops support for older 6.x clients due to protocol changes.
Q: Where can I find the checksum for version 6.0.10?
A: Log into the Fortinet Support Portal, navigate to the file download page – SHA256 is listed there.
The most reliable method for the FortiClient VPN 6.0 download is through Fortinet’s official support portal:
Note: If you do not have a support contract, Fortinet offers a free, limited "VPN-only" version. However, the 6.0 legacy installers are often gated. In that case, contact your organization’s FortiGate administrator—they can download the installer directly from their FortiGate unit (under System > FortiClient).