Re: Fortigate-VM system lock up with Maxed out CPU and RAM when enabling a security profil
First, Are you using Firefox? If yes, Firefox have it's own certificate store.
Second, be sure to download the Self-signed certificate from Security Profiles -> SSL/SSH Inpection -> select your profil and click the link. You're right, you have to import it on your computer in "Trusted Root Certificates". You can also use GPO to deploy it. I configured really often Deep-Inspection without major issue.