Bios password need master power on password,person i bought it from forgot it.

Remove the CMOS BATTERY And turn On the pc and go to Bios Then change password OR Follow Link And Read The Steps
http://varuhardtech.blogspot.in/

You can remove any set bios passwords with the bios master password. Just visit www.mastermindit.biz and click Unlock HP/Compaq Bios
That page shows you how to get the error/hash code needed to create the Bios Master Password. You order then enter your computer info and error-hash code.
They calculate the Bios Master Password from your information and email you it along with instructions on how to use it. They usually respond within an hour or two but never more than 8 hours and then your are unlocking the bios on your laptop. Knowledge and Service is outstanding. They use PayPal so you wont get cheated and they guarantee their service.
I use them when I get a laptop with a bios password that is unknown.
Mastermindit

Try using www.unlockbiosrecovery.com they supply bios master passwords and hard drive master passwords for most laptops. They charge $20 for bios master passwords and guarantee it to work or your money back.

For your unknown Samsung bios supervisor password and Samsung hard drive password go to http://www.unlockbiosrecovery.com/Unlock_Samsung_Bios.php to get your bios master password and http://www.unlockbiosrecovery.com/Unlock_Samsung_HDD.php for your hard drive master password. They guarantee the master passwords they supply to work or your money back. I use them a few times a month doing my work as a laptop tech.

HP Spare Key can be used to reset BIOS password. It is provided by HP Corporation. So when you forgot BIOS password on HP computer, just download it and get perfect BIOS password reset.
How to reset HP bios password with Spare Key or other ways?

Please refer to reset HP Elitebook password. In this passage, you also can learn how to reset Windows administrator password easily.
http://www.isunshare.com/windows-7-password/reset-hp-elitebook-password.html

flash BIOS in support.dell.com bios master password will be reset

User passwords:
Power on
BIOS execution can be controlled by a Power On Password. This password is set in the BIOS Configuration screen, accessed by pressing the F1 key after pressing the power on switch to turn on the PC. If the person at the keyboard does not know the Power On Password, then BIOS execution halts.

Hard drive
The hard drive is controlled by the Hard Drive Password. After the Power On Password is entered, the person at the keyboard must be able to enter the Hard Drive Password, otherwise the disk drive will not spin up for use. Like the Power On Password, the Hard Drive Password is set in the BIOS configuration screen.

Administrative passwords:
Each of the two user passwords can be controlled by a Master or administrative password. If the administrative password is not set, then anyone who knows the user password can change it in the BIOS configuration screen. If the administration password is set, then it is impossible to reset the user password unless you know the administrative password. The Supervisor Password is the administrative password for the Power On Password. The Master Hard Drive Password controls the Hard Drive Password.

Password Recovery is a feature of Client Security Solution 6.0. This makes it possible for an end user to recover from the problem of "I forgot my Power On Password or Hard Drive Password."
Client Security Solution

In cas eof forgot password of bios you must follow the following steps

• open the cabinet and look for the bios on the corner
  
• there u would find a pin which is fixed on the side of BIOS take the pin out and put it in the next two pins and again fix it at the original p

Now your BIOS password is reset and u can access your pc

why you want to remove the bios password? if you own the laptop and forgot the passowrd you can contact Dell support site

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Good Luck / Please dont for get to Vote.Thank you.