Lenovo ThinkPad i Series 1157 ThinkPad 570 User's Reference - Page 161

Using passwords providing the supervisor password. The supervisor password is required only to access the BIOS Setup Utility. It provides the following security features: - If a supervisor password is set, a password prompt appears if you try to start the BIOS Setup Utility. - The system administrator can use the supervisor password to access the computer even if you have set a power-on password. The supervisor password overrides the power-on password. - If both the supervisor password and the power-on password are set, only the supervisor password enables you to access the following items: - Changing the boot sequence - Changing or deleting the power-on password - Changing or deleting the supervisor password - Enabling the Wake-on-LAN feature - The supervisor password has priority over the hard-disk-drive password. The hard disk is protected by the supervisor password so that unauthorized users cannot access data on the hard disk. - The system administrator can set the same supervisor password on many ThinkPad computers to make administration easier. Other passwords Some Microsoft operating systems provide special Windows passwords. Refer to that system user's guide for information on how to set, change, and use these passwords. Chapter 3. Protecting your computer 145