I suggest right-clicking on the TurboTax app and choosing to "Run as administrator." If that doesn't work, uninstall and reinstall using this link: Where can I get the Desktop edition of TurboTax?
For installation issues, make sure you are following these points:
- Windows are up to date
- You have the administrator rights on the profile you are installing TurboTax on
- You are not trying to install on a cloud
- Turn off your antivirus software and Windows Defender before installation and turn them back on once it is installed.
If the error persists, we suggest you contact our product support by phone.
https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/tax-return/contact-us/L1h8P3E0x_CA_en_CA?uid=m4j5o7no
They are open Monday to Friday, 9am to 6pm EST.
Thank you for choosing TurboTax.