My laptop doesn't have a CD/DVD drive. Is there a way to install Turnkey MediaWiki from a thumbdrive?

I tried copying all the files from the CD (after burning the iso file I downloaded here) on the thumbdrive and changing the boot order of the laptop, but I got the following messages:

No operative system found, and

Remove your accessories and press any key to reboot.

Evidently I'm doing something wrong. Any help please?