Had seen various folks ask about how to do this (I did mine long ago and far away to make my Windows machine dual-bootable to Win or CentOS) and while looking for some HD repair diagnostics, ran across this and thought it may be useful to some folks.

http://rufus.akeo.ie/

I’ve not yet used it, but it looks easy.

YMMV, of course, as may mine! :-)

Bill