Disable driver signature enforcement only if absolutely necessary — prefer signed drivers.
If the device still appears as "Unknown" or with a yellow exclamation mark: Right-click the button and select Device Manager .
: Windows 11's "Core Isolation" security feature can sometimes block older drivers. Privacy & Security Windows Security Device Security Core isolation details and toggle Memory Integrity Restart your computer. Verify Registry Permissions : Ensure the LOCAL SERVICE has full control over the Cryptography\Calais