open 2025. select "start new return". Turbotax should search your computer for the 2024 file. it will appear in a new window. once found click on "transfer return". worse case open 2024. once the file is loaded save it to your desktop. then start 2025 but in this case use the "find a tax file link" then browse to your desktop.
normally with a Windows computer the default location for the tax file is c:\users\users-name\documents\Turbotax folder. Best to run the apps as an administrator if you can
