@PKaleta If you have purchased a TurboTax Desktop version, you need to install it on a Windows OS. You can install using this link and us ethe 16 digit License code to activate the product. Please ensure that do have a steady internet connection when activating the software.
Make sure 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.
If the error persist, we suggest you to contact our product support by phone.
