Within the turbotax software, in the tools menu at the top left hand side, one of the options is License Key switch. Select it and it will allow you to enter a new license code.

There is no License Key switch under Tools.  Can you look again and let me know where I can find that option.

It should be the last option in the Tools menu. If you are still not able to resolve this issue, please contact our phone support team at 1-888-829-8608.

@TurboTaxSusan my Tools drop down menu does not have anything like you have taken a picture showing license code switch. My choices in Premier Cd is for Tools is My tax data, Final Review, Topic List, Attachments, calculator, Tax Summary, Tax History, Order History.  So do you have some special version of Premier?

I have the Canadian version because this is the support site for the Canadian TurboTax. For assistance with U.S. taxes and U.S. versions of TurboTax, please visit the website for TurboTax USA.