

The initial release of Windows 10 build 10240 was however Upgrade only. Why Product Activation Should Still Work After 1 Year

All the activation mechanisms have been tested on the using Windows 10 RS3 Version 1709 (Build 16299). In practice Windows 7 and Windows 8.x keys still act as Windows 10 keys. Theoretically the Free Upgrade should have ended on the 29th of July 2016 which has long passed. Microsoft made it known that Windows 10 would be a Free Upgrade for those who took advantage of the Free Upgrade within the first year of release. Windows 10 was released on the 29th of July 2015.

All the activation mechanisms have been retested on the using Windows 10 RS3 Version 1709 (Build 16299).
