.NET Framework is a software development framework for building and running applications on Windows.
Some applications require .NET Framework to run and Turbotax is one of them. It you installed Turbotax 2022 from a cd or download .Net should have also been installed. .NET supports running websites, services, desktop apps, and more on Windows.
perhaps it wasn't installed correctly
without it Turbotax will not run on a windows desktop app
your options.
1) contact support - not sure if there will be a charge
5am-5pm Pacific Time (8-8 Eastern) Monday - Friday
https://support.turbotax.intuit.com/contact
800-446-8848
try the following at your own risk
2) if you have administrator privileges you can type command in the windows search bar and select run as administrator. then when a new window opens type sfc /scannow. this may fix the problem.
3) select the link to download 4.8 runtime. know where it's stored on your computer and then double-click on the file to install.
https://dotnet.microsoft.com/en-us/download/dotnet-framework/net48