Ensure the "USB Serial Port" appears under the Ports (COM & LPT) section. Best Practices for Best Results

Keep the subject away from large electronic devices or cell phones during the scan.

Follow the on-screen prompts and choose your preferred language (English is standard for 4.430). Restart your computer once the installation is complete. Connecting the Hardware

Many security programs flag diagnostic drivers as "unknown."

The person being tested should be relaxed and avoid speaking.

Plug the analyzer into a secondary USB port.