How To Reset Bios Password

The first way
Backdoor passwords
Many BIOS manufacturers have provided backdoor passwords that can be used to access the BIOS setup in case you lose your password. Passwords are case sensitive, so you may want to try different combinations. Please note that the key associated to "_" in the U.S. keyboard associated with the "?" On some European keyboards. Laptops typically have better BIOS security than desktop systems, and we are not aware of any backdoor passwords that will work with name brand laptops.
WARNING: Some BIOS configurations will lock you out of the system completely if you type the wrong password more than 3 times. Read the manufacturer's documentation for the BIOS settings before you begin typing in passwords
Award BIOS backdoor passwords:
ALLY ALLY ALLY ALLY ALFAROME aPAf _award AWARD_SW AWARD? SW AWARD SW AWARD PW clumsy awkward BIOSTAR CONCAT condo Condo d8on djonet HLT j256 j262 j332 j322 J64 KDD lkwpeter lkwpeter Pint pint SER SKY_FOX SYXZ syxz shift + syxz TTPTHA ZAAADA ZBAAACA ZJAAADC 01,322,222589589 589721 595595 598598
AMI BIOS backdoor passwords:
AMI BIOS PASSWORD AAAMMMIII Hewitt RAND AMI? AMI_SW lkwpeter AMI SW Condo
PHOENIX BIOS backdoor passwords:
phoenix, PHOENIX, CMOS, BIOS
MISC. GENERAL password
BIOSTAR biostar ALFAROME biosstar CMOS cmos setup SETUP lkwpeter lkwpeter Syxz Wodj
BIOS passwords BY MANUFACTURER
Producers PasswordVobis & IBM merlinDell DellBiostar BiostarCompaq CompaqEnox xo11nEEpox centralFreetech PosterieIWILL IWILLJetway spoomlPackard Bell bell9QDI QDISiemens SKY_FOXTMC Installer failsToshiba Toshiba
TOSHIBA BIOS
Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot
IBM Aptiva BIOS
Press both mouse buttons repeatedly during the boot
Backdoor passwords
Many BIOS manufacturers have provided backdoor passwords that can be used to access the BIOS setup in case you lose your password. Passwords are case sensitive, so you may want to try different combinations. Please note that the key associated to "_" in the U.S. keyboard associated with the "?" On some European keyboards. Laptops typically have better BIOS security than desktop systems, and we are not aware of any backdoor passwords that will work with name brand laptops.
WARNING: Some BIOS configurations will lock you out of the system completely if you type the wrong password more than 3 times. Read the manufacturer's documentation for the BIOS settings before you begin typing in passwords
Award BIOS backdoor passwords:
ALLY ALLY ALLY ALLY ALFAROME aPAf _award AWARD_SW AWARD? SW AWARD SW AWARD PW clumsy awkward BIOSTAR CONCAT condo Condo d8on djonet HLT j256 j262 j332 j322 J64 KDD lkwpeter lkwpeter Pint pint SER SKY_FOX SYXZ syxz shift + syxz TTPTHA ZAAADA ZBAAACA ZJAAADC 01,322,222589589 589721 595595 598598
AMI BIOS backdoor passwords:
AMI BIOS PASSWORD AAAMMMIII Hewitt RAND AMI? AMI_SW lkwpeter AMI SW Condo
PHOENIX BIOS backdoor passwords:
phoenix, PHOENIX, CMOS, BIOS
MISC. GENERAL password
BIOSTAR biostar ALFAROME biosstar CMOS cmos setup SETUP lkwpeter lkwpeter Syxz Wodj
BIOS passwords BY MANUFACTURER
Producers PasswordVobis & IBM merlinDell DellBiostar BiostarCompaq CompaqEnox xo11nEEpox centralFreetech PosterieIWILL IWILLJetway spoomlPackard Bell bell9QDI QDISiemens SKY_FOXTMC Installer failsToshiba Toshiba
TOSHIBA BIOS
Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot
IBM Aptiva BIOS
Press both mouse buttons repeatedly during the boot
Both Ways
Password cracking software
The following software can be used to reset the BIOS on many chipsets. If your PC is locked with a BIOS administrator password that will not allow you to access the floppy drive, this utility may not work. Also, since these utilities do not come from the manufacturer, use with caution and at your own risk.

    Cmos password recovery tools 3.1
    RemPass
    KILLCMOS
Third way
Using the Motherboard "Clear CMOS" jumper or switch settings
Many motherboards feature a set of jumper or dipswitch that will clear CMOS and remove all the settings in it, including BIOS passwords. Location of these jumpers / dipswitch will vary depending on the motherboard manufacturer and ideally you should always refer to your motherboard or computer manufacturers documentation. If documentation is unavailable, the jumpers / dipswitch may sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label CLEAR - CLEAR CMOS - CLR - CLRPWD - passwd - PASSWORD - PWD.
On laptop computers, dipswitch usually found under the keyboard or in a compartment at the bottom of the laptop.Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you find and jumper switches, turn on the computer and the examiner whether the password is blank. If you have, turn on the computer and return the jumper or dipswitch to its original position.
Fourth Method
Removing the CMOS Battery
CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password is blank. (Along with other machine specific settings, so make sure you are familiar with manually reconfiguring the BIOS settings before you do.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with system unplugged) for 24 hours. Some batteries are actually soldered to the motherboard making this task more difficult. Opening solder the battery incorrectly may damage the motherboard and other components, so please do not try this if you are inexperienced. Another option might be to remove the CMOS chip from the motherboard for a certain period of time.Note: Removal of the battery to reset the CMOS will not work for all PCs, and almost all newer laptops store their BIOS passwords in a way that does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as the BIOS when the supervisor password. If you reset the BIOS password, but can not reset the hard drive password, you may not be able to access the drive and will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and this should be used to reset the system.
Fifth Method
Overloading the KeyBoard Buffer
On some older computer systems, you can force the CMOS to enter the setup screen with the boot by overloading the keyboard buffer. This can be done by booting with the keyboard or mouse unattached to the system, or on some systems by hitting the ESC key over 100 times in rapid succession.
Sixth Method
Jumping the Solder Beads on the CMOS
It is also possible to reset the CMOS by connecting or "menjumper" on the chipset. Too many chipsets to do a breakdown of which points to the individual chipsets, and the location of these solder can vary by manufacturer, so please check the computer and motherboard documentation for details. This technique is not recommended for the inexperienced and should be only used as a "last resort".
Seventh Method
Using a professional service.
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