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7. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter
New Password field blank, and press Enter twice.
8. Press the search key
password and the master hard disk password have been removed..
Power management
To reduce power consumption, the computer has three power management modes: screen blank, sleep, and
hibernation.
Screen blank mode (for the Windows 7 operating system only)
If the time set on the "Turn off monitor" timer in the operating system expires, the LCD backlight turns off.
To put the computer into screen blank mode, do the following:
1. Right-click the battery status indicator on the taskbar.
2. Select Power off display.
To end screen blank mode and resume normal operation, press any key.
Sleep mode
When the computer enters sleep mode, the following events occur in addition to what occurs in screen blank
mode:
• The LCD is powered off.
• The hard disk drive or solid-state drive is powered off.
• The microprocessor stops.
To put your computer into sleep mode, do the following:
• For Windows 7: Open the Start menu, then click the arrow next to the Shut down button. Click Sleep
from the menu displayed.
• For Windows 10: Open the Start menu, click
In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
Hibernation mode
In hibernation mode, the following occurs:
• The system status, random access memory (RAM), video random access memory (VRAM), and setup data
are stored on the hard disk drive or solid-state drive.
• The system is powered off.
Note: If the computer enters the hibernation mode while it is docked to the docking station or the port
replicator, do not undock it before resuming normal operation. If you do undock it and then try to resume
normal operation, you will get an error message, and you will have to restart the system.
If you have defined one of the following actions as the event that causes the system to go into hibernation
mode, perform that action.
• Closing the lid.
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L460 Hardware Maintenance Manual
to save changes and exit the ThinkPad Setup program. The user hard disk
Power, and then click Sleep.
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