An electronic device comprising: a memory; a touchscreen (920, 930); and a processor configured to: store, via the memory, a password for allowing change of details including details of available applications related to a user level, the user level being associated with an authority to access applications; receive a user request for changing the details including details of available applications related to a user level; in response to the received user request for changing the details including details of available applications related to a user level, control the touchscreen to display a password input screen; receive a password input through the password input screen; if the received password corresponds to the stored password, provide on the touchscreen at least one guide screen for changing details including details of available applications related to the user level, the at least one guide screen comprising a list of the applications for each of which an access restriction option can be changed; if the details including details of available applications related to the user level are changed, register changed access configuration information in the memory; and control the touchscreen to display icons of unavailable applications for the user level in a distinguishing manner from icons of applications authorized for access. a memory; a touchscreen (920, 930); and a processor configured to: store, via the memory, a password for allowing change of details including details of available applications related to a user level, the user level being associated with an authority to access applications; receive a user request for changing the details including details of available applications related to a user level; in response to the received user request for changing the details including details of available applications related to a user level, control the touchscreen to display a password input screen; receive a password input through the password input screen; if the received password corresponds to the stored password, provide on the touchscreen at least one guide screen for changing details including details of available applications related to the user level, the at least one guide screen comprising a list of the applications for each of which an access restriction option can be changed; if the details including details of available applications related to the user level are changed, register changed access configuration information in the memory; and control the touchscreen to display icons of unavailable applications for the user level in a distinguishing manner from icons of applications authorized for access. store, via the memory, a password for allowing change of details including details of available applications related to a user level, the user level being associated with an authority to access applications; receive a user request for changing the details including details of available applications related to a user level; in response to the received user request for changing the details including details of available applications related to a user level, control the touchscreen to display a password input screen; receive a password input through the password input screen; if the received password corresponds to the stored password, provide on the touchscreen at least one guide screen for changing details including details of available applications related to the user level, the at least one guide screen comprising a list of the applications for each of which an access restriction option can be changed; if the details including details of available applications related to the user level are changed, register changed access configuration information in the memory; and control the touchscreen to display icons of unavailable applications for the user level in a distinguishing manner from icons of applications authorized for access.