On Windows, the default path for your profile is: C:\Users\[Your Username]\Documents\Test Drive Ferrari Racing Legends\profiles .
If the game still shows 0% or a corrupted data message, try these fixes: test drive ferrari racing legends pc 100 save game
: Inside this folder, you will see a sub-folder with a long numerical ID (your GFWL ID). The save file itself usually has a extension. How to Install a 100% Save Game On Windows, the default path for your profile