To provide a system and method for changing parameter values of a computer system without changing security properties.SOLUTION: A method includes receiving a request to change a system configuration of the computer system, and identifying a parameter relating to system configurations on the basis of the received request. The method further includes, on the basis of the identified parameter, receiving instructions to change the identified at least one parameter, and initiating a transaction to change the identified at least one parameter on the basis of the received instructions. The initiated transaction is then analyzed to determine whether the change of the parameter will lower a security level of the computer system. If the security level is not lowered, the identified parameter relating to the system configuration is changed.SELECTED DRAWING: Figure 3A
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