Grant system administrative permissions if prompted by security controls.
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The software includes a bundled , eliminating the need for independent Java installations. Operating System Minimum OS Version Key Installation Note Windows Windows 11 or later Requires 64-bit operating system architecture macOS macOS 14 (Sonoma) or later thinkorswim download
Once you've downloaded and installed Thinkorswim, you'll need to log in with your TD Ameritrade credentials: thinkorswim download