Did you buy the download from Costco? I did too. You get the activation key on the confirmation email. You download and install it the same way as you did the first time. I don't know how that works with Costco. You might need to log into your email on her computer or forward the Costco emails to her to be able to click on the download link. Then to install it she will have to log into your Turbo Tax account. Let me know if you get it to install and how from Costco on another computer.
