Microsoft is releasing its long-awaited Windows 8.1 upgrade as a free download starting Thursday. It addresses some of the gripes people have had with Windows 8, the dramatically different operating system that attempts to bridge the divide between tablets and PCs.
Windows 8.1 still features the dual worlds that Windows 8 created when it came out last October. On one hand, it features a touch-enabled tile interface resembling what's found in tablet computers. On the other, there's the old desktop mode where the keyboard and mouse still reign. The update adds some new finger- and gesture-friendly shortcuts for touch-based apps, while restoring some respect for the desktop mode that a billion PC users have become accustomed to.