Next version of Microsoft Windows will be called Windows 7. Why “7” you ask? Well, this will be the seventh release of Windows by Microsoft and it will succeed Vista.
It was earlier codenamed as Blackcomb and Vienna.
According to MS, this version will be compatible with Vista and will have new features and improved performance and kernel. It will be available by end of 2009 or early 2010.
Check out the following official site: