Enabling Or Disabling A Device - Lenovo 90H9 Hardware Maintenance Manual

1. Start the Lenovo BIOS Setup Utility program (See "Starting the Lenovo BIOS
Setup Utility program" on page 13.)
2. From the Security menu, select Set Power-On Password and press the
Enter key.
3. The password dialog box will be displayed. Type the current password then
press the Enter key.
4. Type the new password, then press the Enter key. Re-type the password to
confirm the new password, if you type the new password correctly, the new
password will be installed. A setup notice will display that changes have been
saved.
To delete a previously set Power-On Password, do the following :
1. From the Security menu, select Set Power-On Password and press the
Enter key.
2. The password dialog box will be displayed. Type the current password and
press the Enter key.
3. To delete the Power-On Password, Enter blank fields for each new
password line item. A setup notice will display that changes have been saved.
4. Return to the Lenovo BIOS Setup Utility program menu and select the Exit
option.
5. Select Save changes and Exit from the menu.

Enabling or disabling a device

The Devices options is used to enable or disable user access to the following devices:
USB Functions
ATA Drive Setup
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Lenovo Legion Y720T Hardware Maintenance Manual
Select whether to enable or disable USB
(Universal Serial Bus) functions. If the
functions are disabled, no USB devices
can be used.
Select IDE or ACHI mode. Device driver
support is required for ACHI mode.
Depending on how the hard disk image
was installed, changing this setting may
prevent the system from booting.