Microsoft Gets its Windows Mojo Back

Microsoft today showed off more of its still-under-construction Windows 10, focusing on features like the voice-activated Cortana digital assistant and its "universal" app model that aims to put the same apps on PCs, tablets, smartphones and hybrid 2-in-1s.
The company also announced that upgrades to Windows 10 will be free to all devices currently running Windows 7 and Windows 8.1 on PCs or tablets, or Windows 8.1 on Windows smartphones.
"One of the key questions for today was 'Can they get