So Microsoft doesn’t offer any easy to download or bootable USB creation tool for it. Although, Windows 7 is the most used Windows version right now, but Microsoft’s focus is still on Windows 8 and 10 as the represent the future of Windows. Windows 7 is Microsoft’s most used Windows right now, so its quite obvious that many people still want to know how to create a bootable USB drive of it. In this tutorial, we are going to show you how to get Windows 7, 8 and 10 ISO image (Legal and Free) and create a bootable USB drive out of it to install Windows in any PC (if supported). So it is important to know which tools you require and how to create a bootable Windows USB drive for your particular Windows version (7,8 or 10). The source to get the Windows ISO file is different and the tool required to create a bootable USB drive is also different (or at least the process is). However, the process and tools are actually different for the installation of each version of Windows.