Disable Extreme Boot

Use either of the following methods to disable Extreme Boot:

Note: If you use Extreme Boot, the following situations may occur:
  • The Lenovo or Energy Star logo does not appear when the computer starts.

  • USB devices such as keyboards, mice or external storage are not initially available on startup.

  • The system cannot be started through a USB device or network boot.

  • Firmware-based trusted platform module (TPM) applications will have limited functionality.