b660 can't install system in compatibility mode

Maybe the method is not right, you can follow the following steps to reinstall:

1, in the computer boot or reboot press the boot shortcut key to enter the bios settings.

2, switch to the "settings" option, in turn open the "Security\Secureboot" option, change to "disabled "

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3, continue to switch to the "setting" option, select the "Advanced Options", set the "BIOSUEFI/CSMMode" to "csm". to "csm".

4. Return to the previous screen and set "IntegratedPeripherals and RAIDConfiguration(IntelVMD)" to "disable". ".

5. Finally, press the "F10" key to save the settings after the modification is completed.

6, insert the U disk boot disk has been made, reboot continuously press the f12 key, select the recognized USB flash drive startup item (Note: If there is a default uefi option USB flash drive startup and traditional mode startup, here remember to choose uefi USB flash drive startup), click enter.