How to delete an interface

Question

I've build a XG FW for my home situation. So far so good, all needs can be fullfilled. 
 
 I started out with an old PC with 4 NIC's. I only need 3 so i tried to remove the spare. First i made sure the interface was not assigned and it shows as being unbound. 
 When i remove the NIC and restart the machine LAN isn't available any more. 
 
 Any pointers on how i shood approach this problem? 
 
 Thank you, Peter-Paul

lferrara · Accepted Answer

Peter, 
 do not remove the Interface after the installation because it will break the order if the XG restarts. So leave the interface as it is and do not assign it to any zone. 
 Regards