The code names "Vienna" and "Blackcomb" were both given to Windows 7.
Windows Longhorn.
Whistler
Longhorn
Windows vista was introduced in July 22, 2005. It is known by its codename 'longhorn' .
Windows Vista and Windows Server 2008 both shared the codename "Longhorn" during development at Microsoft.
Windows Seven is the codename for the next version of Windows in development by Microsoft. As yet, Microsoft have refused to give details of the operating system, as they are currently busy marketing Windows Vista, the current version of Windows.
durango
That edition of Windows Vista does not exist. Windows Vista exists in two editions for home users: Windows Vista Home Basic and Windows Vista Home Premium.
The codename for windows 8 is "Blue".
No your windows 7 will not deleted
No. Obviously, if you upgrade to Windows Vista, you will have Windows Vista.
Whistler.
No.