Microsoft Windows 7 Ultimate SP1 64-bit (1-Pack)
Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say "Product Key" before 25 digits or have an image of a key next to 10 digits with the remaining 15 on the next line below. The Product Key is generally located in the lower left corner of the DVD case, on the disc itself, or on a leaflet in the packaging you received.