Re: How do I remove the registration code for my sims 3.

@reevesd81  The usual way to do this is to uninstall TS3 and then clean your computer's registry, either manually or with a tool like Piriform's CCleaner.  That's where the codes are stored, and unless you remove them, you'll keep getting the error message.  I take it you're installing via disc; when you reinstall, you should have no trouble using the new code.

The license limit error might be a different issue, though.  Could you clarify your code situation?  Do you have one currently registered to your Origin account, or have you only been using discs?  You can check your Origin game library.  How many computers have you installed TS3 on in the past?  The older security software placed a limit on the number of installs you could have at any one time, but Origin installs are exempt.  And are you running Windows or mac OS?