Microsoft is set to release Windows 10 later this year and users of current versions of the operating system will get an upgrade free of charge. That's what Microsoft said and made abundantly clear last January when it presented key consumer features of the new OS including Cortana, Project Spartan (now Microsoft Edge), DirectX 12, and Hololens, which seemingly runs some version of Windows 10. So where's the confusion? Since the announcement, there have been some mixed signals and speculation about who'll get the free upgrade and who won't. Here's a brief overview of the different upgrade paths to Windows 10... Read the complete article.