Microsoft has released the Windows 10 technical and enterprise previews to the public and if you are like me, you will want to try out the next version of Windows before it is released to the public. There are two product keys available for the different editions of Windows 10.
A key for the consumer Windows 10 technical preview can be found on the Windows Insider ISO download page located here. When installing the consumer technical preview, use the following key:
The enterprise technical preview does not require a key for installation but does require one for activation. The following key can be found on the TechNet evaluation center: