Just days ago microsoft notified (via systray) majority users Windows 7 si Windows 8 / 8.1As may reserve free The original copyto download si installation, the future Windows 10 operating system.
It is somewhat less marvelous that Microsoft decided to offer Free upgrade Windows 10 a limited number of users. Specifying course and that the upgrade It is one of trial. It is a permanent upgrade.
*Yes, free. This limited time offer is for a full upgrade version of Windows 10, not a trial. 3 GB download required; Internet service fees May Apply.
To benefit from this upgrade, those who received the notification from Microsoft will have to register the email address to be notified when can download and install the new Windows 10.
Windows upgrade status can be checked from systray> Right-click the Windows icon and 10 "Check your upgrade status"
According Microsoft this upgrade is free ... but nobody knows what will happen to those who have booked the upgrade, but the system you have installed using a pirated license. Microsoft may have overlook this.