Patent ID: 7447888

Claim:
A method for restoring a computer operation system, the method comprising at least steps of: a) previously backing up all information related to start up of a computer in an HPA (Host Protected Area) of a hard disk including at least files of the operation system, hard disk boot information, partition table information and data information in a boot sector of a boot partition; b) providing a self-checking module in the HPA of the hard disk, and additionally configuring a command for invoking the self-checking module in a Basic Input/Output System (BIOS) of the computer; and c) invoking the self-checking module by the command in the Basic Input/Output System when the computer is booted from the hard disk, and determining by the self-checking module, whether the information related to start up of the computer is destroyed or not, if so, restoring the destroyed parts and then starting up the computer, and if not, directly starting up the computer; wherein the system performs an incremental backup for the files of the operation system, and a complete backup for the hard disk boot information, the partition table information and the data information in the boot sector of the boot partition in a scheduling or monitoring manner when backing up not for the first time; the backup in a monitoring manner comprises at least steps of: a1) starting up a monitoring program by the user to monitor all the information related to start up of the computer; a2) determining whether the data of the monitored files are changed or not, if so, then performing step a3), and otherwise, repeatedly performing step a2); a3) determining whether the data of the hard disk boot information are changed or not, if so, then performing step a4) after completely backing up the data of the current hard disk boot information, and otherwise directly performing step a4); a4) determining whether the data of the partition information are changed or not, if so, then performing step a5) after completely backing up the data of the current partition information, and otherwise directly performing step a5); a5) determining whether the data in the boot sector of the boot partition are changed or not, if so, then performing step a6) after completely backing up the current data in the boot sector of the boot partition, and otherwise directly performing step a6); a6) determining whether the files of the operation system are changed or not, if so, then ending up the backup operation after incrementally backing up the data of the current operation system, and otherwise directly ending up the backup operation.