Windows Codename "Washington"

Microsoft Windows Codename "Washington" = Developed in 2009-2011 WNR operating system, named officialy Windows 7.1. This Windows version, look more like Windows Vista, but they is based on Windows 7. The only leaked build is 7.0.8011, compiled in 29 December, 2010. Windows Codename "Washington" and Windows 7.1 is based on NT 7.0 core, unlikely Windows 7.

Windows Codename "Washington" 7.0.8011 release date : 29-12-2009

Windows Codename "Washington" 7.0.8011 BIOS date : 06-02-2010

Windows 7.1 release date : 20-09-2011

Windows 7.1 End-Of-Life date : 30-10-2023