Lenovo ThinkPad T450 (English) Hardware Maintenance Manual - ThinkPad T450 - Page 41

Howtoremovetheharddiskpassword, Powermanagement, Sleepmode

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How to remove the hard disk password Attention: If User only mode is selected and the user hard disk password has been forgotten and cannot be made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide any services to reset the user hard disk passwords or to recover data from the hard disk drive. To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee. To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following: 1. Turn on the computer. 2. When the logo screen comes up, immediately press F1 to enter the ThinkPad Setup program. 3. Select Security. 4. Select Password. 5. Select Hard disk x password, where x is the letter of the hard disk drive. A pop-up window opens. 6. Select Master hard disk password. 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 F10. 9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk 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, press Fn+4 or do the following: • For Windows 7: Click the arrow beside the Shut down icon, and then select Sleep. To return from sleep mode, press the Fn key. • For Windows 8 and Windows 8.1: Move the pointer to the bottom-right corner of the screen to display the charms. Then click Settings ➙ Power ➙ Sleep. To return to normal operation, press the Fn key only. Chapter 4. Related service information 35

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Howtoremovetheharddiskpassword
Attention:
If
Useronly
mode is selected and the user hard disk password has been forgotten and cannot be
made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide
any services to reset the user hard disk passwords or to recover data from the hard disk drive. To put the
system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to
replace the hard disk drive or solid-state drive with a scheduled fee.
To remove a user hard disk password that has been forgotten, when the supervisor password and master
hard disk password are known, do the following:
1. Turn on the computer.
2. When the logo screen comes up, immediately press F1 to enter the ThinkPad Setup program.
3. Select
Security
.
4. Select
Password
.
5. Select
Harddisk
x
password
, where
x
is the letter of the hard disk drive. A pop-up window opens.
6. Select
Masterharddiskpassword
.
7. Type the current master hard disk password in the
EnterCurrentPassword
field. Then leave the
Enter
NewPassword
field blank, and press Enter twice.
8. Press F10.
9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the
master hard disk password have been removed.
Powermanagement
To reduce power consumption, the computer has three power management modes: screen blank, sleep,
and hibernation.
Screenblankmode(fortheWindows7operatingsystemonly)
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
Poweroffdisplay
.
To end screen blank mode and resume normal operation, press any key.
Sleepmode
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, press Fn+4 or do the following:
• For Windows 7: Click the arrow beside the
Shutdown
icon, and then select
Sleep
. To return from
sleep mode, press the Fn key.
• For Windows 8 and Windows 8.1: Move the pointer to the bottom-right corner of the screen to display the
charms. Then click
Settings
➙
Power
➙
Sleep
.
To return to normal operation, press the Fn key only.
Chapter 4
.
Related service information
35