One variation that may be useful to some users: If you right-click on an empty part of the Metro Start screen, you're given the chance to assign names to your groups of tiles.
Figure 1: Two new mouse-friendly features in Metro. First, note the Start and Search icons in the upper-right corner. Second, right-click a tile, and your options appear in an old-fashioned context menu, instead of showing up at the bottom of the screen.
The new, ubiquitous title bar
Every Metro app now shows an old-fashioned title bar at the top. The title bar appears when you first launch the app, stays for a while, then disappears, only to be brought back when you hover your mouse at the top of the screen (see Figure 2).
The problem: Most Metro apps are designed to use the full screen — disappearing "chrome" is, after all, one of the design goals of Metro. Most of the time, having the Metro title bar step on top of the app isn't a big deal, but sometimes it gets in the way, as you can see in Figure 3, blocking a notification on Microsoft's own Answers website.
The title bar adds Split options — to move the Metro app into the left or right half of a Metro split screen — as well as minimize and close (on both the left and the right). When you're looking at a Metro split screen with Windows 8.1 Update installed, a title bar appears at the top of each of the split apps. Close ("X") out of an app on a Metro Split screen, and the other apps don't move in to fill the void.
The new title bar only shows itself to mousers: Tappers can push till the cows come home and they'll never see a title bar.
Figure 2: The Metro title bar (below) can get in the way of Metro app information. In this case, it knocks out a cookie warning for the Microsoft Answers site (above), as viewed in Internet Explorer.
Improvements to the Desktop
Windows 8.1 Update brings two important changes to the Desktop. First, in a move that should draw shouts of praise (or at least relief) from the peanut gallery, if Windows 8.1 Update is installed on a PC that doesn't have a touchscreen, Windows defaults to booting to the old-fashioned Desktop (see Figure 3).
It remains to be seen if detection of a touchscreen works every time, but new nontouch PCs should boot straight to the Desktop, first time, every time. Note that the methods introduced in Windows 8.1 to boot to the Desktop remain intact. You can manually switch booting preferences by right-clicking on an empty part of the taskbar, choosing Properties, then working in the Navigation tab.
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