One of Microsoft's main goals with 'Threshold,' the next major version of Windows, is to win over Windows 7 hold-outs. Windows "Threshold," the next major version of Microsoft's Windows operating system due to hit around the spring of 2015, is coming into focus. And not too surprisingly, one of the Microsoft Operating Systems Group's main goals in designing and developing the coming operating system (OS) release — which may or may not ultimately be branded as "Windows 9" — is to try to make it more palatable to hold-out Windows 7 users. In order to do this, Microsoft is working...