WVU meaning in Computing ?

Windows Vista—a major release of the Microsoft Windows operating system—was available in six different product editions: Starter, Home Basic, Home Premium, Business, Enterprise, and Ultimate. On September 5, 2006, Microsoft announced the USD pricing for editions available through retail channels; the operating system was later made available to retail on January 30, 2007. Microsoft also made Windows Vista available for purchase and download from Windows Marketplace; it is the first version of Windows to be distributed through a digital distribution platform. Editions sold at retail were available in both Full and Upgrade versions and later included Service Pack 1 (SP1).

Microsoft characterized the retail packaging for Windows Vista as "designed to be user-friendly, a small, hard, plastic container designed to protect the software inside for life-long use"; it opens sideways to reveal the Windows Vista DVD suspended in a clear plastic case. Windows Vista optical media use a holographic design with vibrant colors.

With the exception of Windows Vista Starter, all editions support both IA-32 (32-bit) and x64 (64-bit) processor architectures. Microsoft ceased distribution of retail copies of Windows Vista in October 2010; OEM distribution of Windows Vista ended in October 2011.