If you need to run Rufus on a Mac, then it will be imperative for the computer to have a dual boot Windows installed on Mac. This means that you can not use Rufus on the normal Mac computers. Rufus is primarily a Windows application and currently, it supports 64 or 32 bit Windows XP/7/8/10 only. Rufus is small in size, but it surprisingly has everything you need as far as the above are concerned. Rufus is a free, portable open-source utility that you can use to create bootable USB flash drives. Actually, all you need is a USB with a good capacity and a utility like Rufus. Have you ever been faced with the need to install a new operating system on a crashed PC but realize that you don't have the installation disc? For most people, such a case is always discouraging and disheartening because they know that the only way to install a new OS is to use an installation disc.