It seems to be fixed now. For anyone else with this problem this is what I did.
1) Uninstalled Steam - Rebooted
2) Uninstalled Multiplicity - Rebooted
3) Ran the purge batch file as Admin - Rebooted
4) Installed my product as a secondary
When it asked if I was a primary or secondary another window popped up telling me my product had expired. This time I simply closed that box.
After all this the "Change License..." button was now gone from the about box.