Patent ID: 7281159

Claim:
A computer-readable medium or storage device comprising: at least one sequence of instructions, wherein execution of the instructions by a computer entity having a first data storage device and a second data storage device causes the computer entity to: set digital signatures of the first and second data storage devices to be in a self consistent set if there are digital signatures found in the first and second storage devices and there is a discrepancy in the digital signatures found in the first and second data storage devices; and re-set the computer entity to a known state, wherein if: the first data storage device includes an operating system, and a digital signature is found on the first data storage device; and no digital signature is found on the second data storage device; then the instructions causing the computer entity to re-set the computer entity to a known state cause the computer entity to: re-build a primary operating system on the first data storage device; and delete data from the second data storage device.