The product is a vintage Microsoft Windows 98 Upgrade CD with the original box and product keys. This operating system upgrade is designed for standard use and is compatible with Microsoft Windows 98 and Windows operating systems. The CD format is in English language and minimum requirements include 200 MB of hard drive space and a 66 MHz processor speed. This item is a nostalgic piece for collectors or those looking to downgrade their operating system for historical purposes. Made by Microsoft in the United States, this product is a rare find for technology enthusiasts. Disc is in excellent condition with very minimal wear! Please see photos for condition and content. Any questions please ask. From a smoke-free home.