ISO burn is an inbuilt option in Windows 7, which is used to burn image files onto your CD or DVD while reducing their size. It is an effective tool as it is a simple two step process and the image file can easily be burned onto the CD.
Access to this option can be taken by searching in the Start Menu or simply by right-clicking on the file that you wish to burn onto the CD.
Follow this step by step tutorial to learn How to burn ISO files to CD or DVD in Windows 7