How far do you get? Can you post a screenshot? Are you using these steps? How to install and Activate the Desktop Download program with a License Code
How to install TurboTax CD/Download software with license code
Are you on Windows? You might need to update Windows. Go to your computer settings and check for updates. Try clearing out the cache & cookies and reboot your computer.
Troubleshooting Windows install
Troubleshoot installation and running TurboTax for Windows
