This free tool have two fonctionality.
1-Create ISO file (Bootable or not) From Folder.
2-Burn your ISO on you USB Drive or External Hard Drive - and boot on UEFI OR MBR
Why to use :
FCB-ISO, is one of few tool that keep you to burn your iso on USB and also external hard drive you d'ont need to disable SecureBoot all signed driver by Microsoft was integrated.
-the portable version not need to be installed. (portable-version.zip)
-setup.exe is for install version, it is very stable and very fast