Patent ID: 8656168

Claim:
An information processing apparatus comprising: a disk to store data; a memory to store an image file; a transmitting and receiving unit to receive a first authentication key from the recovery apparatus via a network; an authentication processor to, when receiving the first authentication key from a recovery apparatus via the network, perform an authentication process based on the first authentication key and a second authentication key; and a writing controller to write the image file to the disk upon the authentication performed by the authentication processor and issue a completion message from the transmitting and receiving unit to the recovery apparatus via the network upon completion of the writing, wherein, when an external interface of the information processing apparatus is set to be enabled, the writing controller issues a code indicating the enabling of the external interface to the recovery apparatus via the network and stops a write operation of the image file, and wherein the writing controller verifies data written to the disk based on a check sum value included in the image file and a check sum value calculated in the writing of the image file to the disk.