An information processing apparatus comprising: interface means configured to electrically connect, via a USB connector, with a peripheral means capable of receiving a memory storage medium inserted into the peripheral means, the memory storage medium being electrically connected with the peripheral means; connection detection means arranged to detect a temporary interruption in the electrical connection between the interface means and the peripheral means; control means arranged to prevent the memory storage medium,once unmounted and inserted into the peripheral means,from being mounted again after the connection detection means detects said temporary interruption and after the peripheral means are reconnected; and storage means arranged to store information for identifying the memory storage medium that is prevented from being mounted again by the control means, and information for identifying the peripheral means in which the memory storage medium is inserted, wherein the control means is arranged to determine that the memory storage medium, which is prevented from being mounted by the control means, is inserted into the peripheral means, if the memory storage medium inserted into the peripheral means is the memory storage medium which is identified by information stored in the storage means, wherein the control means is arranged to detect that the memory storage medium has been removed from the peripheral means, and wherein the storage means is arranged to delete information for identifying the memory storage medium and for identifying the peripheral means, according to the control means detecting that the memory storage medium has been removed from the peripheral means. interface means configured to electrically connect, via a USB connector, with a peripheral means capable of receiving a memory storage medium inserted into the peripheral means, the memory storage medium being electrically connected with the peripheral means; connection detection means arranged to detect a temporary interruption in the electrical connection between the interface means and the peripheral means; control means arranged to prevent the memory storage medium,once unmounted and inserted into the peripheral means,from being mounted again after the connection detection means detects said temporary interruption and after the peripheral means are reconnected; and storage means arranged to store information for identifying the memory storage medium that is prevented from being mounted again by the control means, and information for identifying the peripheral means in which the memory storage medium is inserted, information for identifying the memory storage medium that is prevented from being mounted again by the control means, and information for identifying the peripheral means in which the memory storage medium is inserted, wherein the control means is arranged to determine that the memory storage medium, which is prevented from being mounted by the control means, is inserted into the peripheral means, if the memory storage medium inserted into the peripheral means is the memory storage medium which is identified by information stored in the storage means, wherein the control means is arranged to detect that the memory storage medium has been removed from the peripheral means, and wherein the storage means is arranged to delete information for identifying the memory storage medium and for identifying the peripheral means, according to the control means detecting that the memory storage medium has been removed from the peripheral means.