Abstract: The invention is directed to a method and a system for cloning a source drive to a target drive. A cloning program launches in a host device, and an amount of partitions and a size of each said partition of the source drive are obtained. The size of each corresponding partition in the target drive is adaptively determined according to a size of the source drive and a size of the target drive. The host device is rebooted and contents of the source drive are copied to the target drive.

Abstract: A method and a removable device for backing up/restoring a host device are disclosed. A portable application is resident in a removable device, which is external to the host device and is capable of being electrically coupled to the host device. The portable application is launched to the host device after the removable device is coupled to the host device. If a backup function is selected, a backup process begins by moving data to be backed up from the host device to the removable device; and if a restore function is selected, a restore process begins by moving data to be restored from the removable device to the host device.