What issues are you having while downloading the software?

For installation issues, make sure you are following these points:

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 persists, we suggest you contact our product support by phone. 

Refer to What are the Windows requirements for TurboTax Desktop? 

Thank you for choosing TurboTax.