The present invention relates to an information processing apparatus, an activation method, and a program which allow activation to be performed more quickly so as to enter a state according to a user's operation. A host CPU (11) causes a state to transition to an initial state, which is an initial state of a working state and in which execution of application processing is inhibited, before entering a suspend state. An embedded controller (33) acquires from an input unit (11) a signal indicating an activating factor that serves as an activation trigger. When activating from the suspend state, the host CPU (11) executes return processing to the initial state, and upon returning to the initial state by activation, causes a state to transition to an application execution state in which the application processing according to the activating factor is executed. The present invention can be applied to a digital still camera.