Lenovo ThinkPad E475 User Manual

Also see for 20H4: Hardware Maintenance Manual

Chapter 4. SecurityThis chapter provides information about how to protect your computer from unauthorized use.Using passwordsThis topic provides information about how to use the power-on password, supervisor password, and harddisk password.Passwords introductionYou can help prevent your computer from unauthorized use by using passwords. After you set a password, aprompt 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.If you have set a power-on password, a supervisor password, or a hard disk password, it unlocksautomatically when the computer resumes from sleep mode.Note: If a Windows password has been set, you are prompted to enter it when the computer resumes fromsleep mode.Power-on passwordYou can set a power-on password to help protect your computer against unauthorized access.If you set a power-on password, the password prompt is displayed on the screen whenever you turn on thecomputer. You must enter the correct password to start using the computer.When this icon is displayed, type a power-on password or a supervisor password.Supervisor passwordThe supervisor password protects the system information stored in the ThinkPad Setup program. It providesthe following security features:• If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPadSetup program. Unauthorized users cannot change most of the system configuration options in theThinkPad Setup program without the password.• The system administrator can use the supervisor password to access a computer even if the user of thatcomputer has set a power-on password. The supervisor password overrides the power-on password.• The system administrator can set the same supervisor password on many ThinkPad notebook computersto make administration easier.Hard disk passwordsSetting a hard disk password prevents unauthorized access to the data on the hard disk drive. When a harddisk password is set, you are prompted to type a valid password each time you try to access the hard diskdrive.The following two types of hard disk passwords can help protect the information stored on the storage drive:• User hard disk password© Copyright Lenovo 2016, 2018 37