The Microsoft Windows Vista Ultimate with Service Pack 1 66R-02262 Upgrade Package is a DVD format operating system in English language, specifically designed for Microsoft Windows Vista and Windows operating systems. With a minimum RAM requirement of 512 MB, this standard license package is ideal for upgrading and enhancing the performance of your computer. With its origin in Puerto Rico, this product offers a reliable and high-quality upgrade experience for users looking to optimize their operating system.Unsure if product key has been used or not, both disc in great condition. Case has been opened and product code is visible. Unable to test if it has been used.