Officially pirated win 7/8 users can install Insider preview of Win 10(i.e. Beta OS) and they have to upgrade to latest beta build whenever they are released by microsoft to keep windows 10 activated. So it means microsoft wants them as Beta Tester for upcoming builds of win 10 after July 29,2015.They cannot get stable upgrade free. :s
Now unofficially I can confirm that I got Get windows 10 notification on my PC and my Win 10 upgrade is reserved. Now I have to see what happen during upgrade process :k
Windows 10 won't be first day first show for everyone
"Starting on July 29, we will start rolling out Windows 10 to our Windows Insiders. From there, we will start notifying reserved systems in waves, slowly scaling up after July 29," Microsoft said on its official blog.