TurboTax Online doesn't make a short cut on your computer. Instead you would use your web browser to go to the following website and login through there. https://ww2.2017.turbotaxonline.intuit.ca/
If you are trying to open the CD/Download version of TurboTax and it won't open, you may need to reinstall the program.
https://turbotax.community.intuit.ca/replies/2647640
https://turbotax.community.intuit.ca/replies/3169457
If you are still having issues, please
contact our phone support for further assistance.
https://turbotax.community.intuit.ca/replies/3152013