You should probably just contact the software vendors. Most will have support options, and you should be able to transfer your old licenses. This kind of issue isn't all that uncommon. As for the serial, you could brick your logic board that way if you mess up. I don't recommend it. Also keep in mind if the ram was an after market upgrade, you should always test it yourself upon installation. There are no exceptions to that rule.
1/28/15 at 7:23pm