According to one embodiment, an electronic apparatus includes a registration processor, a transmission processor, and a reception processor. The registration processor registers second data in a first file in a non-volatile storage device. The transmission processor transmits third data which is at least part of the first file to a server. The third data includes data registered in the first file after the data is previously transmitted to the server. The server includes a second file for registering all data transmitted from at least one second electronic apparatus, which corresponds to a user, including the electronic apparatus. The reception processor does not receive the fourth data from the server when only the electronic apparatus corresponds to the user.
