This product is a sealed Microsoft Windows 7 Professional operating system in retail box format, compatible with both 32 and 64-bit systems. With a minimum 1 GHz processor speed, 1 GB of RAM, and 15.62GB of hard drive space, this DVD includes the English language version of the software. Designed for use with Microsoft Windows 7 and Windows 7 64-bit, this operating system is ideal for standard licensing and activation on one device. Perfect for those looking to upgrade their computer's operating system with a reliable and well-known product from Microsoft.