Rufus is an open-source application that helps users to create bootable USB drives. It helps you format USB flash drives and then you can use them to install an operating system on any PC. It’s a free application that you can quickly download on your PC. It’s a small size application that requires very little system resources to operate. However, if you want to save memory space, you can opt for its portable version. It can run on Windows XP and later versions of the operating system. This utility was developed by Pete Batard and is available in 39 languages.