6.How can I boot to DOS using my USB drive or ODD? Refer to the following steps:

a.Restart your Notebook PC and enter BIOS by pressing F2 on your keyboard.

b.Go to Boot > Launch CSM > Enabled.c.Go to the Security menu then set Secure Boot Control toDisabled.

d.Press F10 to save changes and exit BIOS.

e.Press and hold ESC to launch boot menu when your Notebook PC restarts.

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Notebook PC E-Manual