How do I deregister TurboTax from my old computer to install on a new computer? With my old computer I have TuboTax installed on 3 computer, this is why deregister.
Try installing it on the new computer. If you are unable to activate it after the installation process completes, get in touch with our customer care agents. Keep your proof of purchase handy when you call: https://turbotax.community.intuit.ca/replies/3152013
