Autokent Mvci Multi Driver X64 Site
| Issue | Cause | Workaround |
|-------|-------|-------------|
| PassThruOpen returns ERR_NOT_SUPPORTED | Wrong vendor DLL registered | Run MVCI_Config.exe → Register DLL |
| Driver not starting (Code 52) | Unsigned driver | Enable test mode or use signed version |
| USB disconnect during flash | Power sag from USB port | Use powered hub |
| Firmware “No Link” with Techstream | MVCI stuck in bootloader | Short pins 4–13 (or 4–14) → reflash |
| High CPU usage | Polling driver in DLL | Update to multi‑driver v3.x (event‑driven) |
| Aspect | 32‑bit driver | 64‑bit driver | |--------|---------------|----------------| | OS support | Win XP–Win 7 32-bit | Win 7/8/10/11 x64 | | DSE requirement | None (XP era) | Mandatory signature or test mode | | USB stack | Often libusb0 (filter driver) | WinUSB / libusbK (cleaner) | | J2534 DLL | 32‑bit only | 32+64 hybrid (WoW64 aware) | | Stability | BSOD risk with sleep/resume | More stable on modern hardware |
If you are not intentionally using a Toyota MVCI diagnostic interface (if you don’t modify cars’ ECUs or read OBD data), you likely do not need this driver. Here is a safe removal process:
Q: Why does Windows say the publisher cannot be verified? A: This is common with industry-specific diagnostic drivers. You must select "Install this driver software anyway" during the installation process, or disable Driver Signature Enforcement as detailed in the installation guide above. autokent mvci multi driver x64
Q: The device is not recognized by Techstream. What should I do? A: Ensure the driver installed correctly in Device Manager. Navigate to the Techstream "Setup" menu, select "VIM Select," and ensure the MVCI or Autokent interface is selected as the active communication interface. Check that the correct COM port is being used if applicable.
Q: Is this driver compatible with Windows 11? A: Yes, most x64 drivers designed for Windows 10 will function on Windows 11, provided the system is restarted with driver signature enforcement disabled during installation.
Interactive:
msiexec /i "$env:TEMP\AutoKENT_MVCI_x64.msi"
Silent (enterprise):
msiexec /i "$env:TEMP\AutoKENT_MVCI_x64.msi" /qn /norestart ADDLOCAL=ALL
The installer performs the following steps automatically:
After install, reboot once (or run pnputil /restart) to let the PnP manager bind the new driver. | Aspect | 32‑bit driver | 64‑bit driver
After thorough analysis, here is the bottom line:
Many antivirus engines flag clone automotive drivers generically as PUP.Optional.DriverInstaller or RiskWare.DeviceClone. This is not because the driver is a virus, but because it:
