Data protecting method, memory controller and memory storage device

A memory controller for controlling a rewritable non-volatile memory module and comprising:

• a host interface configured to couple to a host system;
• a memory interface configured to couple to the rewritable non-volatile memory module, wherein the rewritable non-volatile memory module has at least a first storage area and a second storage area;
• and
• a memory management circuit coupled to the host interface and the memory interface and configured to provide default configuration information and pre-boot codes stored in the first storage area in response to a boot command from the host system, wherein the host system is unable to recognize the second storage area according to the default configuration information, and the pre-boot codes are executed in the host system,
• wherein the memory management circuit is further configured to receive a user identification code and a user password from the host system and determine whether the user identification code and the user password are respectively identical to a first identification code and a first password,
• wherein if the user identification code and the user password are respectively identical to the first identification code and the first password, the executed pre-boot codes transmit a re-boot command to re-boot the host system, and the memory management circuit provides first configuration information to the host system after re-booting the host system, wherein the host system recognizes the second storage area according to the first configuration information and accesses data stored in the second storage area.

A memory storage device comprising:

• a connector configured to couple to a host system;
• a rewritable non-volatile memory module having at least a first storage area and a second storage area;
• and
• a memory controller coupled to the connector and the rewritable non-volatile memory module and configured to provide default configuration information and pre-boot codes stored in the first storage area in response to a boot command from the host system, wherein the host system is unable to recognize the second storage area according to the default configuration information, and the pre-boot codes are executed in the host system,
• wherein the memory controller is further configured to receive a user identification code and a user password from the host system and determine whether the user identification code and the user password are respectively identical to a first identification code and a first password,
• wherein if the user identification code and the user password are respectively identical to the first identification code and the first password, the executed pre-boot codes transmit a re-boot command to re-boot the host system, and the memory controller provides first configuration information to the host system after re-booting the host system, wherein the host system recognizes the second storage area according to the first configuration information and accesses data stored in the second storage area.