Enabling a module automatically creates module schema if this module implements hook_schema by invoking hook_install and it sets its state as active in the system.

Disabling a module just sets the module's state as inactive in the system.

Un-installing is the next step after disabling to remove database schema and configurations from the system.

To Disappear modules form module list can only be achieved by removing them from modules' directory.

Enabling a module automatically creates module schema if this module implements hook_schema() by invoking hook_install() and it sets its state as active in the system.

Disabling a module just sets the module's state as inactive in the system.

Un-installing is the next step after disabling to remove database schema and configurations from the system.

Removing modules from the module list can only be achieved by removing them from modules directory.