2。 The method of restoring the default value of BIOS: when starting or restarting the computer, press and hold the DEL key to enter the BIOS; Find Load Fail-Safe Defaults, press the arrow keys to select it, and then press Enter. You will be prompted whether you are sure, press Y, and then press Enter. Finally, select Save &; Exit the step (save the settings), or press F 10 directly and press Enter Y to restart automatically, and the settings will take effect.