Windows 8 Pro is selling for about $66.99 compared to $136 for a copy of Windows 7 Pro. Those who have purchased a PC after June 2012 are elligible for an upgrade to Windows 8 for only $13.99. Now, for those who don’t want to spend some money for upgrades they can download a legitimate copy of Windows 8 and get a free Key from Microsoft. Yeah! You heard it right. A free Key from Microsoft!