Fujitsu Siemens Computers V2020 - Manual (Page 44)

Security functions
36 A26391-V2020-Z120-1-7619, edition 1
Password protection of operating system
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With the supervisor password or the user password, you have assigned in the BIOS
Setup Utility (see "Setting a supervisor password" section), you can also prevent booting
of the operating system.
Activating system protection
► Enter the BIOS Setup Utility and go to the Security menu.
► Select the Password Check option.
► Select the Always option.
► Select the Save Changes and Exit option under Exit.
Your notebook will now restart and you are asked to enter your password (the supervisor password).
Deactivating system protection
► Enter the BIOS Setup Utility and go to the Security menu.
► Select the Password Check option.
► Select the Setup option.
► Select the Save Changes and Exit option under Exit.
► Press the Enter key.
The notebook reboots and there is no longer any password protection for the operating system.