Window 2007 is a (an)?

Word Processor

Operating system

Application Soft ware

none of these

"Window 2007" is a common way to refer to Windows Vista,

It is the version of the Windows operating system released by Microsoft in 2007.

Windows Vista: This operating system was a major release of the Windows NT family,

Released to manufacturing on November 8, 2006, and internationally on January 30, 2007.

Windows 7 was released in October 2009, and its internal version number is Windows NT 6.1