eMy laptop is going poopoo on me. Can i install efi live on the desktop and use it even though its installed on my laptop? If i do install it on the desktop, all i have to do is install it to the flashscan and tune the truck with the flashscan correct?

You can download it to as many computers as you want. The licenses stay with the cable. I have EFI on 3 different laptops right now.