MSI MS-6339 User Manual page 97

CHAPTER 4 AWARD BIOS SETUP
®
Additionally, when a password is enabled, you can also require the BIOS to
request a password every time your system is rebooted. This would prevent
unauthorized use of your computer.
You determine when the password is required within the BIOS Features
Setup Menu and its Security option. If the Security option is set to
"System", the password will be required both at boot and at entry to Setup.
If set to "Setup", prompting only occurs when trying to enter Setup.
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