Over the weekend, we reported that Microsoft planned to give away free Windows 10 licences to those who were trying out the Preview. As it turns out, Microsoft itself seemed confused. Now, the company says that installing the Preview on an otherwise unauthorised PC will not get you a free licence.
The way it works is a little complex, but if you had a valid licence for Windows 7 or 8 prior to installing the Preview, you will be able to upgrade to the regular, RTM version of Windows 10 for free. If not, you can remain in the Insider program which will continue to receive beta updates. However, being in the Insider program does not guarantee you a valid, active licence.