Chapter 4. Security
This chapter provides information about how to protect your computer from theft and unauthorized use.
Attaching a mechanical lock
You can attach a mechanical lock to your computer, to help prevent it from being removed without your permission.
Attach a mechanical lock to the keyhole of the computer; then secure the chain on the lock to a stationary object. Refer to the instructions shipped with the mechanical lock.
Note: You are responsible for evaluating, selecting, and implementing the locking devices and security features. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance of locking devices and security features.
Using passwords
By using passwords, you can help prevent your computer from being used by others. Once you set a password, a prompt is displayed on the screen each time you turn on the computer. Enter your password at the prompt. You cannot use the computer unless you type the correct password.
Passwords and sleep mode
If you have set passwords and you put your computer into sleep mode by pressing Fn+F4, you will be prompted to enter the password when resuming operation.
If any hard disk drive or the solid state drive has a hard disk password, it is unlocked automatically when you resume operation.
Note: If a Windows password has been set, you will be prompted to enter it.
Typing passwords
If this icon is displayed, type a
If this icon is displayed, type a user hard disk password. If you want to type a master hard disk password, do the following:
1.Press F1. The icon changes to this: 
2.Type the master hard disk password.
Note: To return to the icon 
, press F1 again.
If this icon is displayed, type a supervisor password.
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