Back in 1991, Microsoft released their first version of Windows, a mouse-driven graphical user interface that revolutionised the way we use computers, both at home and in the workplace. Now, in 2012, they hope to stage a new revolution with Windows 8, perhaps Microsoft’s most daring release yet. Featuring an unusual tile-based Start screen that’s optimized for touchscreen devices, Windows 8 will be available on new computers, laptops and ultrabooks, hybrid tablets and even a new range of Microsoft-branded, iPad-style tablets called Microsoft Surface. Whichever device you end up running Windows 8 on, you’ll need to know a few things. First, how.