Yes, July 29 is the official release day for Windows 10. But with such a large group to upgrade (one billion eligible devices, according to Microsoft), the rollout will take some time, Redmond explained today.
First, Microsoft will soon send Windows 10 to PC makers so they can add the operating system to new machines that will hit stores this summer and throughout the back-to-school season. Then retailers will get it, so they know what they're talking about when customers come in asking question.
