I have an Acer Aspire S7 Ultrabook with Windows 8.1 (nightmare)
The keyboard is anything but simple to a layman like myself.
Can anyone advise as to how to use or where the backslash key can be found ?
Maybe a picture of the keyboard? It should be just printed to the left of the right shift key on the keyboard, regardless on its complexity. Some laptops might use a different keyboard layout though so I'm not certain.