MSI Megabook PR200 User Manual page 72

When the Supervisor Password is set, the new item User Access Level
and Password Check will be added in the menu. You can make further
settings of access right in the User Access Level item. Setting options:
No Access, View Only, Limited and Full Access. The Password Check
item is used to specify the type of BIOS password protection that is
implemented. Settings are described below:
Setup The password prompt appears only when end users try
to run Setup.
Always A password prompt appears every time when the
Notebook is powered on or when end users try to run
Setup.
To clear a set password, just press [Enter] when you are prompted to enter
the password. A message box will show up confirming the password will
be disabled. Once the password is disabled, the system will boot and you
can enter Setup without entering any password.
About Supervisor Password and User Password
Supervisor Password allows the user to enter and change the
settings of the setup menu; User Password only allows the user to
enter the setup menu, but do not have the right to make changes.
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BIOS Setup