Here are 4 free software to make USB bootable. Download these software to burn ISO files to USB flash drives and make USB Bootable for free. Learn step by step how to make a bootable pendrive for Windows 7 and load installation files in USB flash drive from your. DVD. History. Before Windows 8, only embedded versions of Windows, such as Windows Embedded Standard 7, supported booting from USB storage devices. In April 2011, after. Heres how to boot from a USB device, like a flash drive or USB external HDD. Changes to your PCs settings are usually required. Heres how to do it. Most Popular Tutorials on this Site. Volume Label change this text box to set the volume label. Download Game Netbook Windows 7. BIOS dependant the BIOS determines how a system boots and each BIOS has a slightly different way of interpreting these options.