Step 1: Use the direct download link here: ThinkTrader for Windows
Step 2: A setup.exe file will be downloaded to your computer.
Step 3: Open the downloaded file and click ‘Install’ in a pop-up window to start the installation.
Step 4: Once the installation is done, you’ll see the login window where you’ll need to enter your login credentials.
If the login window doesn't open automatically, you can launch the platform from the icon on your desktop.
To install ThinkTrader desktop on a Mac OS please download from here - https://apps.apple.com/us/app/thinktrader/id768615734?mt=12