If you need to load in expert mode and recovery mode, try the following ADB ADB driver.
- Download Driver
- Lenovo remove all existing software and drivers are installed, if any, and restart the computer
- Run the driver install your newly downloaded. Will automatically load
- Restart the computer
- Connect with your Lenovo USB device, wait for a while to complete the driver installation. You can access your device when finished. Still do not see again, start your computer.