Which (e.g., Windows 10, Windows 11, macOS) are you running? Does the light on the USB key turn on when plugged in? Share public link

If you have tried multiple ports and reinstalled the drivers but the key still isn't recognized, the hardware itself might be defective.

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Troubleshooting the "Parashara's Light 9.0 Hardware Key Not Found" Error

(or your specific Parashara’s Light executable) and the hardware key driver to your antivirus exclusion list. Disable Temporarily

Plug the hardware key back in and wait for the Windows notification confirming the device is ready to use. 3. Verify the Sentinel Local License Manager Service

Parashara's Light uses Sentinel HASP technology to recognize the hardware key. Corrupted drivers are the most frequent cause of this error. Disconnect your hardware key from the computer. Go to your Windows > Programs and Features .