If you receive a error code with a message saying, “All available activations for that code have been used,” that means your code has already been used the maximum number of times, and therefore can’t be used to install the software on another computer.
This most commonly occurs when the software has been purchased from an unauthorized 3rd party reseller. What these illegal resellers do is sell the same code 5 times. So if one of the first 4 buyers uses the code twice to install it on another computer, that 5th buyer is just flat out of luck. That's why it's best to purchase from an authorized reseller, if you don't purchase it directly from Turbotax. To often I see the "cheaper alternative" turn out to be the most expensive option.
