Windows 10 Insider Preview All ISO direct downlinks & Universal Product Keys

Skip the Windows 9, Windows 10 became Microsoft's latest operating system, and its Insider Preview edition has been released for some time (now it has been Insider Preview). Fully named Windows 10 Insider Preview, with OS (Kernel) version NT 6.4 (Windows 8 is 6.2, Windows 8.1 is 6.3).