@dynom Yes, there is a hardware device that plugs into your USB and pretends to be a CDROM, and you can add .ISOs to it to boot off:https://www.iodd.shop/Of course it depends on your computer BIOS supporting boot from USB - not all of them support it.I have a couple of old ones (one USB 2 and later one USB 3), and it worked great on most things, but an old HP ProLiant wouldn't boot off it.There are quite a few shinier ones available now by the looks of their site.Also, there's Ventoy (https://www.ventoy.net), but i've never tried it.