Windows flags the device with a yellow exclamation mark in Device Manager as an "Unknown Device."
The original software and drivers were developed in the era of Windows XP and Windows 7 (32-bit). bmw scanner 140 drivers
BMW Scanner 1.4.0 Drivers - Download and Installation Guide Windows flags the device with a yellow exclamation
Reopen Device Manager and ensure the device is listed properly under Universal Serial Bus controllers . If it shows an error, repeat the driver installation steps using a different USB port. Avoid using USB 3.0 (blue) ports; older scanners prefer legacy USB 2.0 ports. "Connection Error with IKE / EWS" bmw scanner 140 drivers