While Microsoft says Windows 7 machines are adequate for running Windows 8, there are shortcomings that can arise that would frustrate users, particularly as they relate to the touchscreen.
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Specifically, the screens include hot corners where mousing into them causes navigation features to pop up. Bottom right: Charms bar. Top left: open applications. Bottom left: Start tile.
Responsiveness to touch can vary. The HP TouchSmart 520 PC all-in-one desktop used here was tricky to master and could involve several flicks and touches to get the system to respond, particularly in these corners.
That was with the earlier Consumer Preview version of Windows 8. With Release Preview Microsoft apparently left out the drivers for the touchscreen as it did in the earlier version initially, so touchscreen didn't function at all. With Consumer Preview, Microsoft eventually upgraded to provide the missing drivers.
Since this test machine is a desktop, using the touch features is a little unnatural to begin with; sitting at a desk and using touch on a 23-inch screen feels a bit like conducting an orchestra. With touch acting balky it becomes a source of aggravation and drives users to employ Windows 8 in traditional desktop mode.
That creates a learning curve for users in basic ways. With the live corners and a screen not tuned for Windows 8, it's easy to run the cursor out of the application and wind up in a different app.
For example, if you are in Internet Explorer and want to hit the Back button in the upper left, it's easy to overshoot and wind up in the live corner. If you click there, you wind up in the last application you were playing with.
On the application front, in Release Preview Microsoft has renovated Windows Store. It is the place to go to buy Metro-style applications that embrace touch. Going to the store looks more commercial. Rather than the clean Metro tiles with just words, the apps tiles look more like advertisements that include photos, illustrations, logos, slogans and multiple type faces. This is entirely up to the developers of the applications, but does make the store feel like a different environment.