Windows8 How to enter the PE system

1, the Boot Press "F2" into the BIOS Select Advanced, will "Fast BIOS Mold" to "Disabled" and then into the boot;

2, choose Secure Boot will be "Enabled" modified to Disabled, thereafter, will be in "Secure Boot" pop-up OS mode selection option;

3, "UEFI OS" change to "CSM OS", and then save by F10, restart press F10, select USB boot, you can enter PE.

4, to enter the PE after the modification, restart the computer to recommend another F2 into the BIOS restore the default, or may not boot.