A Bootable USB is a software that will allow you to install Windows Vista, 2008 and 7 (Seven) in any type of PC.
The idea of developers is to solve one of the drawbacks that the netbooks users have: lack of CD or DVD drives. For this reason, the program allows to install Windows from a USB flash drive, so that it can be used on any computer.
While it is prepared for netbooks, A Bootable USB can be run on any computer. The only thing needed is generating the installer, and for doing this the user should have the operating system DVD or ISO image, and also the free space on the USB flash drive (it is at least 4 GB).
As well: if you did not know how to install Windows without CD or DVD drive, now have the chance that A Bootable USB make the work easier for you.