MVCI refers to both a hardware standard and a software driver interface. The most common hardware is the (often called the "Mongoose" or "VCI" cable). This device connects your Windows laptop to the vehicle's OBD-II port, allowing communication with various ECUs (Engine Control Units, Transmission, ABS, Airbag, etc.).
Open ( devmgmt.msc ). You should see two "unknown" or "failing" devices with yellow exclamation marks (often under "Other Devices"). mvci driver for toyota msi zip