Windows Vista Ultimate OEM x86 SP1 Integrated June 2008
Windows Vista  is a line of operating systems developed by Microsoft for use on personal computers, including home and business desktops, laptops, Tablet PCs, and media center PCs. Prior to its announcement on July 22, 2005, Windows Vista was known by its codename Longhorn. Development was completed on November 8, 2006; over the following three months it was released in stages to computer hardware and software manufacturers, business customers, and retail channels. On January 30, 2007, it was released worldwide, and was made available for purchase and download from Microsoft's website.The release of Windows Vista comes more than five years after the introduction of its predecessor, Windows XP, the longest time span between successive releases of Microsoft Windows.

This is a permanently activated version of Vista Ultimate, it passes the Windows Genuine validation every time all the time.
Download it and burn the ISO onto a DVD, then install, and follow the 
Instructions.