Look for the TurboTax 2018 icon on your desktop or
search for it in your Start menu. If you find the icon, try to start the
program. If you can’t find it, it may not have installed correctly.
https://turbotax.community.intuit.ca/replies/2647711
If you are unable to resolve the problem please
contact our phone support team as they will be better able to assist you. https://turbotax.community.intuit.ca/replies/3152013