This is the Windows 7 Professional SP1 Operating System Recovery DVD for an HP Compaq PC, in MINT condition - part number 650434-DN3 - 64-bit software.  Item is not in use, has been opened, and is in original paper sleeve.  This is an authentic Microsoft disc for operating system reinstallation and repair.  Product Key is not included, it is found on your machine.  Photos are of actual disc for sale.