Quote: Originally Posted by Jonathan_King
Actually, making a USB installation key is very easy. In fact, all you need to do is drag the installation files to it!
Be sure to read this tutorial; I use method 2. USB Windows 7 Installation Key Drive - Create
Jonathan: Is there something wrong with this (my) tutorial???
rosokan: At what point in this process do you get the "not valid" message?
I also think Jonathan and I were on the same page... I realize that you want a bootable USB, but have you been able to test your iso by burning a good DVD from it?