Windows 7 ultimate 32bit sp1.iso

Windows 7 (codenamed Vienna, formerly Blackcomb[9]) is a personal computer operating system developed by Microsoft. It is a part of the Windows NT family of operating systems. Windows 7 was released to manufacturing on July 22, 2009,[10] and became generally available on October 22, 2009,[11] less than three years after the release of its predecessor, Windows Vista. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time.