Technical Tip: Disable FortiCare Registration warning/notification

• Log in to FortiGate.
• The FortiGate Setup window will pop up:

• Select 'Later'.
• Select the web console or CLI console:

• Run the commands below:

config system global

    set gui-forticare-registration-setup-warning <enable/disable> <----- enable: Display the feature from the GUI, disable: Do not display the feature from the GUI.
end

Note:

Beginning with v7.4.9, newly deployed FortiGate units are required to complete FortiCare registration before full access to the FortiOS GUI, and the complete CLI feature set is enabled for additional device configuration. For further details, check Enforce FortiCare registration with read-only CLI 7.4.9 

To disable FortiCare registration enforcement check, this can be achieved via the BIOS. For more details, check: Technical Tip: Enforcing FortiCare Registration Starting From v7.2.11, v7.4.8, v7.6.5, v8.0.0