How to Boot from USB under UEFI Environment?
In UEFI mode, it is impossble to change the boot order like that in traditional BIOS. Then how to change the PC to boot from USB/CD under UEFI environment? Do not worry! Changing the Boot order in UEFI is not so complicated as you believed. Now, let’s follow the step-by-step instructions.
Start to Change the Boot Order in UEFI
Step 1: Restart the computer and enter UEFI.
When computer starts up, press the hotkey (F2, for example) to activate the BIOS menu. You can press this hotkey when you can see the logo of your computer brand on the screen. Here we take Dell computer as an example.
Step 2: Select “Security” tab and set the “Secure Boot” to “Disabled”.
Step 3: Go to “Advanced” tab and then select “System configuration”.
Step 4: Change the “Boot Mode” to “CSM Boot” instead of “UEFI Boot”.
Step 5: Select “Boot” and select the related USB or CD/DVD in the first of the list.
Step 6: Click “F10″ to save the changes and restart the computer.
After resetting the login password with Renee Passnow in the target computer, it’d better to disconnect the bootable media and then re-enter the BIOS and return to the default settings:
Set the “Secure Boot” to “Enabled” and change “Boot Mode” back to “UEFI Boot”. Then make the hard drive to the first boot list.
Otherwise, you computer will continue to boot from the bootable USB or CD.