I see lot’s of negative reactions on FortiClient, as it is very closed source, many intermittent issues, and is a product that tries to be a jack of all trades (over a couple of versions, in addition of being a proprietary VPN client, they started doing vulnerability scanning, interfering with anti-virus products, they blocked saving of passwords and allowing password managers to paste them, and I could go on).
Sometimes you have to use it in order to access a FortiGate based VPN server, so the best is to defer starting it until as late as possible.
Here are some links to get that configured correctly:
- [WayBack] Cant stop FortiClient from starting on startup | Fortinet Technical Discussion Forums
- [WayBack] How to disable FortiClient – // Vedran Zulin – Homepage
–jeroen