Rufus is a utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc. It can be especially useful for cases where: you need to create USB installation media from bootable ISOs (Windows, Linux, UEFI, etc.) you . Oct 25, · Oct 25th, Older versions. Advertisement. Rufus is a tool for Windows that lets you create several different kinds of bootable devices from external drives such as USB pen drives and SD cards. Its versatility makes it possible to both format a drive and install Linux, Windows and even FreeDOS disk images, integrated in the tool/5(38).