See here: [URL] For Windows 8.1 Single Language everything is identical to Windows 8.1 except "Switch Languages on the Fly" with Windows 8.1 Single Language as the name suggests you are stuck on the language that was originally installed.
Why DELL recommend to buy Window 8.1 Pro instead of Window 8.1 Single Language for Inspiron 14 3000 Series (Intel)? What disadvantages i will get if i choose later?
Operating system for Inspiron 14 3000 Series (Intel)