Legacy bios installation

So before I attempt to install fyde os on my laptop I just want to know whether its gonna boot up in legacy bios(my bios is locked with a password so I cant change to uefi), a guy suggested to use the vm version idk how true this is but yeah, I downloaded the right variant for my laptop its an hp elitebook 8470p kinda old I know. Anyways will it boot up or no?