I cannot install the turbo tax into my pc. The message is "This license code has already been associated with an account."

If your license code isn’t working to activate the TurboTax software, it may be because you’ve entered it incorrectly.

Double-check your code and enter it carefully in the License code box on the installation screen.

• Note: Your license code is not case sensitive—you don’t need to worry about capitalization. You also don’t need to enter the dashes when typing in your code. Just enter the numbers and letters exactly how they appear.

Please click My code doesn't work to learn more.

How do I enter my license code when it has been entered twice?

Please follow this FAQ for issues downloading/activating the product. 

If you are having issues entering the code still, please click here to contact customer support. 

how to enter license code / WHEN IT IS ALREaDY TO SOME OTHER ACCOOUNT / Help please

Did you already install it from a CD and now want to download it? There is a problem with that.  You need to call in and get another License Code.

Contact Customer Service

 (You need to pick the CD/Download program in the product drop down box.) 
5am-5pm Pacific Time
Monday-Friday
https://support.turbotax.intuit.com/contact/

What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632

I have entered it correctly.  This is the second year in a row that I have had to call support because the license code doesn't work.  

We apologize for the inconvenience, please contact us at customer support so we can further assist you.

@mgstilz