Im trying to boot form usb but keep getting a failed message! Can anyone help .
I had almost finished installation previously but my laptop died in the later stages, is this the cause?
First, verify your ISO image (check the hash of the image as described here) Flash the elementaryOS iso again on another USB (if possible).
If that doesn't help, next step is to boot into live session, go to the /boot/efi and rename grubx64.efi to mmx64.efi as answered here.
Another solution I found on this forum, where he used 2 USB keys to boot from one and install from another.
