Restoring Default Settings; Changing An Existing Hardware Password; Limitations - Lenovo ThinkPad T400 Deployment Manual

Restoring default settings

To restore default BIOS settings, use the Lenovo_LoadDefaultSettings class, then use the
Lenovo_SaveBiosSettings class to save the BIOS changes (see sample scripts).

Changing an existing hardware password

To update a password, specify a password type and format the password. The format for password
parameters is "pop,abc,def,ascii,us" with descriptions in Password parameters format, changing existing
hardware password (see "Set a supervisor password on the local computer when a supervisor password
exists" on page 22 and "Set a supervisor password on a remote computer when a supervisor password
exists" on page 23 for sample scripts).
Table 5. Password parameters format, changing existing hardware password
Parameter Description
Parameter 1 Password type string
Parameter 2 Current password string
Parameter 3 New password string
Parameter 4 Password encoding
Parameter 5 Keyboard languages

Limitations

The following WMI limitations exist for BIOS setup:
• BIOS settings cannot be changed at the same boot as power-on passwords (POP) and hard disk
passwords (HDP). If you want to change BIOS settings and POP or HDP, you must reboot the system
after changing one of them.
• A password cannot be set using this method when one does not already exist. Passwords can only
be updated or cleared.
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Lenovo BIOS Setup using Windows Management Instrumentation Deployment Guide
Possible selections
• "pap": Supervisor
• "POP": Power-on
• "uhdp1": User HDP 1
• "mhdp1": Master HDP 1
• "uhdp2": User HDP 2
• "mhdp2": Master HDP 2
• "uhdp3": User HDP 3
• "mhdp3": Master HDP 3
• "abc" - raw ascii character
• "1e302e" - scancode
• Raw ascii "def"
• Scan code "201221"
• "ascii"
• "scancode"
• "us" - English US, English UK,
Chinese-Traditional, Danish, Dutch,
French-Canadian, Italian, Japanese,
Korean, Norwegian, Polish, Portuguese,
Spanish-European, Spanish-Latin American,
Swiss, Turkish
• "fr" - French-European, Belgian
• "gr" - German, Czech, Slovak, Slovenian