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Engineering

Possible to reset BIOS to defaults without having physical hardware ac

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Is there a way to enable a disabled boot device (e.g. CD-rom boot) on a password-ed BIOS config to a physically locked machine?

Or BIOS password + disabled boot devices + machine physical lock is the safest security setting for a PC?

Can this be bypassed? or impossible? What do you know?

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I suppose it's possible... somehow. Some motherboards come with drivers that expose an interface to flash the BIOS from Windows. This could be used to force a BIOS update and/or reset to failsafe configs. Though this is a pretty targeted thing to do, I doubt there's a "unlock any computer" program out there. You also risk making the computer inoperable if the motherboard doesn't have a second BIOS (though most do these days, it seems). Oh, and this will certainly need administrator privs as well, if that's a factor.

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