Windows 7 Ultimate Upgrade 64-bit, in addition to Ultimate Upgrade 32-bit, is now available for sale to students and employees for personal use through the ITS Software Store. Each order includes one license and one media kit.
Ultimate is the most feature-rich version of Windows 7, and includes BitLocker for protecting data against loss or theft. See http://www.microsoft.com/windows/windows-7/compare-editions/default.aspx for a comparison across editions.
Please contact software.store@vanderbilt.edu if you need additional information.