Things are starting to heat up for Windows 10. Just this week, Microsoft has dropped word on various features and interesting tidbits to look forward to in the next major version of Windows. Free upgrades were promised, probably even for pirated copies of the OS, and a summer launch has been mentioned. But just because the upgrade will be free and available doesn't immediately mean your PC or smartphone will be able to get it without a hitch. Again in China, Redmond is sharing what it will take for your PC or mobile to get Windows 10 up and running.