To capture the whole desktop (that is, everything visible on your screen) simply press the (Print Screen) key (usually located towards the top right-hand corner of the keyboard, often the leftmost in a group of three keys).There is a built-in facility on Windows PCs and Apple Macs that allows you to 'capture' what is displayed on the screen (a screen capture or screenshot) and save it as an image file. 974How can I capture an image of what is on the screen of a Windows PC or Apple Mac?