Win32 Disk Imager is a free tool for Windows to write an IMG file to removable device and backup your removable device to a raw image file.

Making an ISO image of a hard drive means creating a 1-to-1 backup copy that consists of a .iso file. Here are two ways to do just that.

In Windows 10 it appears bootable. This is because Windows 8 and on include the ability to mount Disc Image files in Windows Explorer. When I move it to my Windows 7 PC, it does not recognize it.