Once there, input your Product name or number. You can look online for Recovery Media starting with the linked paged: You have to order these from HP they can not be downloaded. In some cases, you may be able to order a USB stick instead of disks. This is a set of DVDs and a CD, or USB stick, that will erase the hard drive (removing all data, settings, and applications, reinstall the original OS, drivers, and some HP Utilities. HP does not provide an ISO, and the only thing they do provide is something known as HP Recovery Media. Sorry, but there is nowhere you can download the HP OEM version of Windows 7. Allow me to welcome you to the HP forums!