Kamis, 23 Oktober 2008

Unlocking Bios Password

If you are unfortunate enough to set a password for your BIOS password for PC and forgot it, chances are you may need to send it back to the manufacturer. Not to worry yet, you still can try out some tips and tricks to bypass or unlock the BIOS password:


BIOS passwords can add an extra layer of security for desktop and laptop computers. They are used to either prevent a user from changing the BIOS settings or to prevent the PC from booting without a password. Unfortunately, BIOS passwords can also be a liability if a user forgets their password, or changes the password to intentionally lock out the corporate IT department. Sending the unit back to the manufacturer to have the BIOS reset can be expensive and is usually not covered in the warranty. Never fear, all is not lost. There are a few known backdoors and other tricks of the trade that can be used to bypass or reset the BIOS password on most systems.


Before attempting to bypass the BIOS password on a computer, please take a minute to contact the hardware manufacturer support staff directly and ask for their recommended methods of bypassing the BIOS security. In the event the manufacturer cannot (or will not) help you, there are a number of methods that can be used to bypass or reset the BIOS password yourself. They include:
  • Using a manufacturers backdoor password to access the BIOS
  • Use password cracking software
  • Reset the CMOS using the jumpers or solder beads.
  • Removing the CMOS battery for at least 10 minutes
  • Overloading the keyboard buffer
  • Using a professional service
Please remember that most BIOS passwords do not protect the hard drive, so if you need to recover the data, simply remove the hard drive and install it in an identical system, or configure it as a slave drive in an existing system. The exception to this are laptops, especially IBM Thinkpads, which silently lock the hard drive if the supervisor password is enabled. If the supervisor password is reset without resetting the and hard drive as well, you will be unable to access the data on the drive.