Well, ok but as far as I know booting in MBR/old bios doesn't have the same effects regarding the underlying system, right?
I mean, isn't it better to boot in uefi, when your system is uefi?
I had to open command prompt to type some bootrec commands a while ago and
I think I had to boot in uefi mode in order to view my disk and partition in the way uefi does.
Another example is, if you turn off uefi and secure boot, the underlying system refuses to boot (in windows).
In any case, you mean that it isn't possible to create a multi-boot usb with custom iso images entries and have it boot in uefi,
even if it's created in fat32?
I think the problem lies in the menu though, since I had an acronis bootable usb and I managed to boot in it,
but once again I wasn't able to view the options offered by it (i.e. "press 1 for true image and 2 for report)
Edited by patrickdrd, 30 June 2017 - 09:59 AM.