User Manual

• If you have set a supervisor password and remember it:

1. Restart the computer. When the logo screen is displayed, immediately press F1.

2. Type the supervisor password to enter the UEFI BIOS menu.

3. Select Security ➙ Password ➙ System Management Password by using the arrow keys.

4. Type the current supervisor password in the Enter Current Password field. Then, leave the Enter

New Password field blank, and press Enter twice.

5. In the Changes have been saved window, press Enter.

6. Press F10 to save changes and exit the UEFI BIOS menu.

• If you have not set a supervisor password, contact a Lenovo authorized service provider to have the

system management password removed.

Use Power Loss Protection function (for selected models)

For models shipped with an NVMe (Non-Volatile Memory express) M.2 solid-state drive, the M.2 solid-state

drive features the Lenovo-unique PLP (Power Loss Protection) function to avoid data loss or damage. On

very rare occasions, your computer is not responding and you might have to shut down your computer by

pressing and holding the power button for about seven seconds. In this case, the PLP function enables key

data of your computer to be saved timely. However, there is no guarantee that all data is saved in any

situation. To check the type of your M.2 solid-state drive, do the following:

1. Restart the computer. When the logo screen is displayed, press F10 to enter the Lenovo diagnostics

window.

2. On the TOOLS tab, select SYSTEM INFORMATION ➙ STORAGE by using the arrow keys.

3. Locate the Device Type section to check the information.

Use the fingerprint reader (for selected models)

If your computer comes with a fingerprint reader, you can use it to enroll your fingerprints. After enrollment,

you can tap your finger on the fingerprint reader to log in to Windows.

Enroll your fingerprints

Open the Start menu and then click Settings ➙ Accounts ➙ Sign-in options. Then, follow the on-screen

instructions to finish the enrollment.

During the enrollment, the fingerprints are associated with the Windows password automatically. It is

recommended that you enroll more than one fingerprint in case of any injuries to your fingers.

The illustration in this documentation might look different from your product.

42 T490, T590, P43s, and P53s User Guide