Download the appropriate ISO file. As of 2016-03-10, Microsoft offers an official download link, but not all languages are available there. Alternatively, find an inofficial download link.

1. Windows 7
   • Microsoft
   • Create an iso file from your original Windows 7 DVD
2. Windows 10
   • Microsoft Windows 10 Single-Language ISO Download
3. Media
   • Download the Windows USB/DVD Download Tool and create a bootable USB drive
   • Install Rufus as program or Rufus Portable as Portable App.