This Windows 7 Pro Professional 32-Bit Reinstallation DVD from Dell comes sealed with a key, ready for use. It is an operating system in DVD format with an English language option suitable for installation on devices with a minimum of 20 GB hard drive space, 2 GB RAM, and 1 GHz processor speed. The license category is standard and it is designed for use with Windows 7 Pro Professional operating systems. This product is manufactured in the United States and is suitable for use on a single device.