Hi, I have an old computer with no cd, no usb, no nothing

I`m trying to make an fresh install of xubuntu runnig the live cd from the hdd.
I remove the hdd from the computer and plug it in another one. The hdd is not bootable. Its completely clean. I can format it anyway.

I have it in my windows like e:
The unetbootin problem. I select the hard drive, forcing it, and the process completes without problem.
Then a select in my bios to boot from that hdd but nothing happens.

I assume unetbootin modifies an existing booting system. But what a need to do is to create it from scratch the hdd.

thanks in advance