Abstract: Installing a program on a first or primary computer system, and duplicating the installation on a second or secondary computer system. At least some of the illustrative embodiments are methods comprising installing a software program on a first computer system by way of a human interacting with the first computer system (the installing by way of a plurality of operations), programmatically duplicating each operation on a second computer system coupled to the first computer system (the duplicating of each operation on the second computer system in real time with each operation on the first computer system), programmatically analyzing a result of each operation on the first computer system against a result of each operation on the second computer system, and notifying the human (by way of the first computer system) when the result of the operation on the second computer system is unexpected.