An information processing device includes: an input receiving section receiving an input; a display control section changing a display screen to a first screen when the input receiving section has not received any input for a predetermined time; a registered user information retaining section retaining biological information of a plurality of users registered in the information processing device; a biological information obtaining portion obtaining biological information; and a biometric authenticating portion determining whether a user whose biological information is obtained by the biological information obtaining portion is a registered user by comparing the obtained biological information with the biological information of the plurality of users retained in the registered user information retaining section. When the biometric authenticating portion determines that the user whose biological information is obtained is a registered user, the display control section changes the first screen to a second screen.