See how Microsoft plans to upgrade hundreds of millions of Windows 7 and Windows 8 computers to the new Windows 10 edition coming end of July in Ed Bott's article on ZDNet:
Get Windows 10: Microsoft's hidden roadmap for the biggest software upgrade in history
The sources of Ed Bott said: This will be done with the GWX executable - which is short for "Get Windows 10". A XML file describes the "roadmap" for the upgrade.
Picture source: zdnet.com
See the article sources on zdnet.com!