But last week, when he got his hands on a laptop running the newest version of Windows for the first time, McCarthy was flummoxed.
Where’s the Start button on Windows 8?
Many of the familiar signposts from PCs of yore are gone in Microsoft's new software, Windows 8, like the Start button for getting to programs and the drop-down menus that list their functions. It took McCarthy several minutes just to figure out how to compose an e-mail message in Windows 8, which has a stripped-down look and on-screen buttons.
Windows, which has more than a billion users around the world, is getting a radical makeover, a rare move for a product with such vast reach.