The first problem was, there was no 'OEM license key printed on the computer'. You may have to use Microsoft's phone-based activation process rather than the more convenient Internet activation will happily accept OEM license keys as long as you're using 'full install' media rather than 'upgrade' media. These downloads do not include a license or a product key to install Windows - you'll still need a valid 'full install' or OEM license and product key.
