content: 1) If you upgrade now from Windows 7/8 to Win 10 Preview -> you'll get the RTM version 2) If you clean install Win 10 now + you are an Insider, you will not get the RTM version, but your Windows will be genuine as long as you continue to use the newer beta builds. 3) In the first year you can upgrade to Win 10 for free if you have a genuine Win 7/8. I hope this helps. MS changed their Insider policy several times. First they wanted to give RTM for free for Insiders, sadly, you'll only get other betas.