Follow the instructions to remove the power-on password
if you forget your power-on password.
If you have set a supervisor password or a system management
password and remember it:
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Restart the computer. When the logo screen is displayed,
immediately press F1.
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Type the supervisor password or the system management password
to enter the UEFI BIOS menu.
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Select by using the arrow keys.
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Type the current supervisor password or the system management
password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.
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In the Changes have been saved window, press Enter.
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Press F10 to save changes and exit the UEFI BIOS menu.
If you have not set a supervisor password
or a system management password, contact a Lenovo-authorized service
provider to have the power-on password removed.