Install the operating system for the system with an external installation medium. You can get the digital license in the system and download it directly from the online. In the old days, Microsoft windows or operating system will be installed by disc or CD or DVD-ROM and optical data, which is decreased, and technology is moved farther, and OS can be installed through the storage drive called BOOTABLE drive. HOW TO CREATE BOOTABLE USB DRIVES FOR WINDOWS 7/10 & MACĭrivers can be installed from the bootable driver and which is effected or need drivers in the system. 1.1 STEPS TO CREATE BOOTABLE USB DRIVE FOR WINDOWS 7/10.1 HOW TO CREATE BOOTABLE USB DRIVES FOR WINDOWS 7/10 & MAC.