Lenovo IdeaPad Z410 Notebook - Manual (Page 28)

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Z410/Z510/Z510 Touch Hardware Maintenance Manual
Passwords
As many as three passwords may be needed for any Lenovo computer: the
power-on password (POP) , Hard-disk password, and the supervisor password
(SVP).
If any of these passwords has been set, a prompt for it appears on the screen
whenever the computer is turned on. The computer does not start until the
password is entered.
Power-on password
A power-on password (POP) protects the system from being powered on by
an unauthorized person. The password must be entered before an operating
system can be booted.
Hard-disk password
There are two hard-disk passwords (HDPs):
+ User HDP - for the user
+ Master HDP - for the system administrator, who can use it to get access to
the hard disk drive even if the user has changed the user HDP
Attention: If the user HDP has been forgotten, check whether a master HDP
has been set. If it has, it can be used for access to the hard disk drive. If
no master HDP is available, neither Lenovo nor Lenov authorized service
technicians provide any services to reset either the user or the master HDP, or
to recover data from the hard disk drive. The hard disk drive can be replaced
for a scheduled fee.
Administrator password
If the Administrator password has been forgotten and cannot be made available
to the servicer, there is no service procedure to reset the password. The system
board must be replaced for a scheduled fee.