Windows 7 is a personal computer operating system developed by Microsoft, a version of Windows NT. Development of 7 occurred as early as 2006 under the codename “Blackcomb”. Operating System Windows 7: Windows 7 was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009, [7] less than three years … Continue reading “Windows 10 upgrade to windows 11 today”