Panasonic CF-Y5 Reference Manual page 58

SD Security
To disable the setup card
If you have lost the setup card, disable the card to avoid unauthorized startup or logon.
When using to start up the computer
A
Start the SD Card Setup program. (
The current settings will be displayed.
B
Remove the check mark from [Use the SD card when starting the computer].
C
Click [OK], and then follow the on-screen instructions.
All SD Memory Cards currently registered on this computer will no longer be usable to start up the computer.
Even if you add the check mark again for [Use the SD card when starting the computer], the card will not be
usable to start up.
When using to log on to Windows
A Change the Windows logon password.
The card will no longer be usable to log on to Windows.
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