Patent ID: 7447935

Claim:
A computer data storage unit reinstallation data protection method for use on a computer platform for providing a reinstallation data protection function to a data storage unit that is to be installed onto the computer platform; the computer data storage unit reinstallation data protection method comprising: generating a utilization status inspection enable message in response to a data storage unit connecting event that is initiated when the data storage unit is being connected to the computer platform; responding to the utilization status inspection enable message by inspecting the utilization status of the data storage unit and registering the inspected utilization status as an internal status attribute in such a manner that if the data storage unit is a new and unused one, the internal status attribute is registered as unused status, if the data storage unit contains data but hasn't previously been installed on the computer platform, the internal status attribute is registered as unrecognizable status, and if the data storage unit contains data and was previously installed on the computer platform, the internal status attribute is registered as recognizable status; performing an external status attribute setting procedure to set an external status attribute for the data storage unit, in such a manner that if the inspected result is unused status, the external status attribute is set to usable status; if the inspected result is unrecognizable status, the external status attribute is also set to usable status; and if the inspected result is recognizable status, the external status attribute is set to has-been-used status; responding to the external status attribute of the data storage unit by displaying a corresponding message in a user interface, in such a manner that in the case that the external status attribute is usable status, the user interface displays a message indicative of the usable status of the data storage unit; and whereas in the case of the external status attribute is has-been-used status, the user interface provides a user-selectable external status changing function for changing the external status of the data storage unit from has-been-used status to usable status; and performing an installation procedure for installing the data storage unit onto the computer platform, in such a manner that in the case that the external status attribute of the data storage unit is has-been-used status, either a formatting installation procedure or a non-formatting installation procedure is allowed depending on user-selection; and whereas in the case that the external status attribute is usable status and user-selected option is a formatting installation procedure, inspecting whether the internal status attribute of the data storage unit is unrecognizable status; and if YES, displaying an asking message for user confirmation.