Its name is not very good - it has nothing to do with downloading, it reads the ISO and writes an installation disk to the USB or to a DVD for that matter.
You can get your drivers from the manufacturer's website. Now restart the computer, press F10/F12 and boot from the USB drive/removable disk. To create a bootable USB stick from an ISO, you need to download the 'Windows 7 USB-DVD download tool'. If you're unable to boot up your machine, in most cases it's due to a missing driver.
All you need to do is load up the drive, switch windows onto the drive, and follow the on screen prompts to install the operating system. If your windows machine is too old to run the DVD-ROM, you can use the bootable usb drive that comes with the windows installation DVD. Many people prefer to use the Windows DVD-ROM to install windows. They also come with a built-in windows installer which allows you to download and install the operating system. Bootable USB devices work very well in this case because they not only allow you to install windows easily. Many people prefer to use the Microsoft windows installer instead of the bootable usb drive as it's easier to use and doesn't involve inserting or copying the actual disc. If your Windows machine isn't too old, you may be able to install windows by using the Windows CD-ROM that came with your computer. This will help you restore any unsaved data in case of damage to the external drive when formatting or reinstalling Windows.
Before you begin, insert the USB device into your USB port and backup any data you've stored on the USB device. You have options to edit partitions on the destination USB drive, but if you want to make exact copy of the source USB, tick Sector by sector clone box.
It starts the process of creating a bootable drive. Click on the USB drive you need (in my case, that is Disk X) and click Next. Use the specific settings you need or The recommended options for this PC. Don’t mix them up, or you’ll lose everything on the bootable USB. Accept the license agreement and select Create installation media. Next, connect the external data device into your computer, either via the USB port on the side or a FireWire port. Select the bootable USB as the source disk and the other as the destination one. To make a bootable USB external drive for Windows Vista, you should first have Windows Vista or 7 running on your computer.