Thank you for your question.

Here are a few links which may help you.

Ontario: http://turbotax.intuit.ca/tax-resources/taxes-ontario.jsp

Start a new return: https://turbotax.community.intuit.ca/questions/1190053-start-a-new-return

TurboTax Desktop software for PC: http://turbotax.intuit.ca/personal-tax-software/download-tax-software.jsp

TurboTax Online for PC and Mac: http://turbotax.intuit.ca/personal-tax-software/online-tax-software.jsp

Where do I enter provincial credits in the EasyStep interview? https://turbotax.community.intuit.ca/questions/1190155-where-do-i-enter-provincial-credits-in-the-ea...

If you require further assistance, kindly contact TurboTax Support and an agent will be glad to assist you. To get a direct line to someone who can help, click the following link to the Contact Us page. Then complete the required information. A phone number will appear, along with your incident ID. Call the number. This will ensure that an appropriate agent is assigned to your query:
https://support.turbotax.intuit.ca/contact/