Recovery method for computer system

The invention discloses a method for recovering a computer system. It includes baking up the system data as a data package, separating the said baked up data package into several data blocks, each data block being coded with a address, encapsulating the data block having address code. When recovering the system being carried, the data block is found out according to based address mark, then the data block is determined whether the block is damaged or not. If the data block is not damaged, the block is used to recovery the system directly; otherwise with the block being corrected first, the itis used to recover the system. The invented method can recover the system by checking integrality of data and recovering error data through physically read directly without dependent on partition table. So the method provides features of simple, efficient and high reliability.