Not sure where you are stuck ... once you download and install the program open it then the program will ask for the code.
If you need to download your program…..
https://ttlc.intuit.com/questions/1901289-download-your-turbotax-software-purchase
Access your downloads here
https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download
If you are an Advantage subscriber sign onto your Advantage account to download
https://accounts-tax.intuit.com/turbotaxadvantage
