Windows 8.1 continues the evolution of the most radical redesign in Microsoft's history. It combines the familiar Windows desktop with a new, touchscreen-friendly world of tiles and full-screen apps. Luckily, David Pogue is back to help you make sense of it-with humor, authority, and 500 illustrations.The important stuff you need to know:What's new in 8.1. The update to 8.1 offers new apps, a universal Search, the return of the Start menu, and several zillion other nips and tucks.New features. Storage Spaces, Windows To Go, File Histories-if Microsoft wrote it, this book covers it.Security. Protect your PC from viruses, spyware, spam, sick hard drives, and out-of-control kids.The network. HomeGroups, connecting from the road, mail, Web, music streami...