Is there an error code or message? Did you buy the License Code for the Online version or the Desktop download. Where? Several retailers are selling both.
Activate Online License Code
https://shop.app.intuit.com/activate
How to use the Online License Code. It is for federal only. State is additional.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/register-activate-services/como-empiezo-...
How to get started with the Desktop program, install and activate it
https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/download-software-turbo...
