The files are generally available in the ISO format, so you need to create a bootable disk with the ISO format to carry out the necessary reinstallation.
Now when your computer or laptop is damaged due to external reasons, you need to reinstall it, and so you require the OS setup files.
These image files usually contain large sized installation files, software, games, etc and cannot be accessed or shared on internet otherwise. ISO image files are archive files comprising compressed data in the form of an image. The topic that are going to discuss here and now is all about burning ISO images to disks, but before we head on with it, you need to be familiar with few terms for a better understanding.