How to easily write IMG to USB, burn ISO to USB, create backups, clone a flash drive and more. Win32 Disk Imager is a free disk imaging and cloning tool used to write raw disk images to a USB flash drive from Windows. As you might have guessed, this tool can also create a backup disk image of a flash drive. You can then use the backup image to clone a new USB flash drive or restore the original drive. Also included is a built in hash checker which helps to ensure your files aren’t corrupted.
Much like Etcher, it also works to direct copy data from .IMG or .ISO files to a removable USB disk. Functioning just like a dd raw write command by overwriting the entire disk with raw data from the source file. As a result, any existing content on the drive is overwritten. Some consider this method destructive because the entire disk, including the boot record and partition table data, becomes overwritten. In some cases the device might even appear unwritable. However, this is almost always only temporary.
You can easily restore a USB flash drive to its original state after using this type of tool.
This tool works great for making clones of hard disk images, CD-ROM ISO files, or even exported virtual hard drives. When using this software, you should also be aware that the new disk capacity is set to the source file filesystem size. However, in some cases this can be fixed by extending or growing the filesystem into the unallocated space.
Writing an Image IMG or ISO File to a USB Drive
Download install and start Win32 Disk Imager (Run as Administrator)
1. Click the folder icon, then browse to and select your .img or .iso file.
Note: From the file explorer browser window during step one, use the dropdown in the lower right hand corner and (choose *.* to show your ISO files).
2. Then select your USB flash drive from the device dropdown.
3. Finally, click the Write button to write the Image to your USB.
How to Create a Backup Image of your Flash Drive
Launch Win32 Disk Imager (Run as Administrator)
1. Type a path as well as a filename to use for your backup image.
2. Then select the drive you want to backup.
3. Finally, click the Read button to backup your Flash Drive to the Image file.
That’s really all there is to it. With the help of the Win32 disk imaging tool, you are able to read or write raw files to and from your USB device. Write IMG to USB, Burn ISO to USB, read IMG from USB, create backups of your data, clone your flash drive and much more.