Fatigue can be used as a password. But if the password is strong, it is a waste of time.

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All that's on the bios is the password to lock the computer ... it doesn't make sense. If you just want to crack his bios password, just pull out the motherboard electronic device for a few minutes and then put it back.

If you don't want to use the guest user, try entering safe mode, and then increase the permissions.