Lenovo ThinkPad 770Z TP 770X User's Reference that shipped with the system - Page 118

Changing or Removing a Password

Page 118 highlights

Using Passwords Do Not Forget Your Password If you forget your hard-disk-drive or supervisor password, there is no way to reset your password or recover data from the hard disk. You have to take your computer to an IBM reseller or an IBM marketing representative to have the hard disk or the system board replaced. Proof of purchase is required, and an additional charge might be required for the service. Neither an IBM reseller nor IBM marketing representative can make the hard disk drive usable. Changing or Removing a Password This security feature prevents someone from removing a password and using your computer. To change or remove a password, do the following: For a Power-On Password or Hard-Disk-Drive Password 1 Power off the computer and wait at least 5 seconds; then power on the computer. The password prompt appears. 2 Type your current password. 104 IBM ThinkPad 770X User's Reference

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Using Passwords
Do Not Forget Your Password
If you forget your hard-disk-drive or supervisor password, there is
no way to reset your password or recover data from the
hard disk
. You have to take your computer to an IBM reseller or
an IBM marketing representative to have the hard disk or the
system board replaced.
Proof of purchase is required, and an
additional charge might be required for the service.
Neither an
IBM reseller nor IBM marketing representative can make the hard
disk drive usable.
Changing or Removing a Password
This security feature prevents someone from removing a password
and using your computer.
To change or remove a password, do the
following:
For a Power-On Password or Hard-Disk-Drive Password
1
Power off the computer and wait at least 5 seconds; then
power on the computer.
The password prompt appears.
2
Type your current password.
104
IBM ThinkPad 770X User's Reference