You can either use a CD if you have it or download the full version of Farm Works to install on the new computer. In doing so, use the same CD keys that are on the other computer - keeping in mind that you need to install the same version that is on the other computer. You will then need to register the software either via automatic, or call into our Support Dept. (800-282-4103). Lastly, take a current backup or create one from the original computer and restore into a project on the new computer. Then you should be good to go.