Unplug and take out the battery, then take out the Bios battery... probably underneath the keyboard (if it wont void your warranty) and hold the power button for about 1 minute then replace the CMOS battery and reboot the machine, if it worked, you wont have a bios password anymore.
As for the HDD password, depends on what it is using to encrypt the drive...some programs can be cracked, some such as Truecrypt are near impossible...you would have to either get the password or format the entire drive.
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~Just StopSpazzing~
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