How To Create Windows Install Discs

Microsoft's Windows media creation tool lets you create free Windows 7, Windows 8.1 and Windows 10 installation discs / media.  All you need is a valid licence key, a blank USB flash drive or DVD with at least 5 GB of available drive space and to visit:
https://support.microsoft.com/en-gb/help/15088/windows-10-create-installation-media