Easily write raw image files to USB with Win32 Disk Imager. This utility uses low level raw read and write functions to directly copy data to or from a device. For example, it can be used to copy an ISO or IMG file to a USB drive. Or instead used to create a backup image of a device. It also features a built in file checking option to check for file corruption before writing a file. This image writing software is available portably as a zipped file.