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How to Baypass BIOS Passwords
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
Disk Laimer
This article is intended for IT Professionals and systems administrators with experience servicing computer hardware. It is not intended for home users, hackers, or computer
thieves attempting to crack the password on a stolen PC. Please do not
attempt any of these procedures if you are unfamiliar with computer hardware,
and please use this information responsibly. LabMice.net is not
responsible for the use or misuse of this material, including loss of
data, damage to hardware, or personal injury.
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.
Backdoor Passwords
Many BIOS manufacturers have provided backdoor passwords that can be
used to access the BIOS setup in the event you have lost your password.
These passwords are case sensitive, so you may wish to try a variety of
combinations. Keep in mind that the key associated to "_" in the US
keyboard corresponds to "?" in 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 in an incorrect password more than 3 times. Read
your manufacturers documentation for the BIOS setting before you begin
typing in passwords
Award BIOS backdoor passwords:
ALFAROME ALLy aLLy aLLY ALLY aPAf _award AWARD_SW AWARD?SW AWARD SW
AWARD PW AWKWARD awkward BIOSTAR CONCAT CONDO Condo d8on djonet HLT J64
J256 J262 j332 j322 KDD Lkwpeter LKWPETER PINT pint SER SKY_FOX SYXZ
syxz shift + syxz TTPTHA ZAAADA ZBAAACA ZJAAADC 01322222
589589 589721 595595 598598
AMI BIOS backdoor passwords:
AMI AAAMMMIII BIOS PASSWORD HEWITT RAND AMI?SW AMI_SW LKWPETER A.M.I. CONDO
PHOENIX BIOS backdoor passwords:
phoenix, PHOENIX, CMOS, BIOS
MISC. COMMON PASSWORDS
ALFAROME BIOSTAR biostar biosstar CMOS cmos LKWPETER lkwpeter setup SETUP Syxz Wodj
OTHER BIOS PASSWORDS BY MANUFACTURER
Manufacturer Password
VOBIS & IBM merlin
Dell Dell
Biostar Biostar
Compaq Compaq
Enox xo11nE
Epox central
Freetech Posterie
IWill iwill
Jetway spooml
Packard Bell bell9
QDI QDI
Siemens SKY_FOX
TMC BIGO
Toshiba 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
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Password cracking software
The following software can be used to either crack or reset the BIOS on
many chipsets. If your PC is locked with a BIOS administrator password
that will not allow access to the floppy drive, these utilities may not
work. Also, since these utilities do not come from the manufacturer,
use them cautiously and at your own risk.
Cmos password recovery tools 3.1
!BIOS (get the how-to article)
RemPass
KILLCMOS
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Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings
Many motherboards feature a set of jumpers or dipswitches that will
clear the CMOS and wipe all of the custom settings including BIOS
passwords. The locations of these jumpers / dipswitches will vary
depending on the motherboard manufacturer and ideally you should always
refer to the motherboard or computer
manufacturers documentation. If the documentation is unavailable, the
jumpers/dipswitches can sometimes be found along the edge of the
motherboard, next to the CMOS battery, or near the processor. Some
manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR
- CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the
dipswitches are usually found under the keyboard or within 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 locate and
rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
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Removing the CMOS Battery
The 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 should be blank. (Along with any
other machine specific settings, so be sure you are familiar with
manually reconfiguring the BIOS settings before you do this.) Some
manufacturers backup the power to the CMOS chipset by using a
capacitor, so if your first attempt fails, leave the battery out (with
the system unplugged) for at least 24 hours. Some batteries are
actually soldered onto the motherboard making this task more difficult.
Unsoldering the battery incorrectly may damage your motherboard and
other components, so please don't attempt this if you are
inexperienced. Another option may be to remove the CMOS chip from the
motherboard for a period of time.
Note: Removing the battery to reset the CMOS will not work for all
PC's, and almost all of the newer laptops store their BIOS passwords in
a manner which does not require continuous power, so removing the CMOS
battery may not work at all. IBM Thinkpad laptops lock the hard drive
as well as the BIOS when the supervisor password is set. If you reset
the BIOS password, but cannot reset the hard drive password, you may
not be able to access the drive and it will remain locked, even if you
place it in a new laptop. IBM Thinkpads have special jumper switches on
the motherboard, and these should be used to reset the system.
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Overloading the KeyBoard Buffer
On some older computer systems,
you can force the CMOS to enter its setup screen on boot by overloading
the keyboard buffer. This can be done by booting with the keyboard or
mouse unattached to the systems, or on some systems by hitting the ESC
key over 100 times in rapid succession.
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Jumping the Solder Beads on the CMOS
It is also possible to reset the CMOS by connecting or "jumping"
specific solder beads on the chipset. There are too many chipsets to do
a breakdown of which points to jump on individual chipsets, and the
location of these solder beads can vary by manufacturer, so please
check your computer
and motherboard documentation for details. This technique is not
recommended for the inexperienced and should be only be used as a "last
ditch" effort.
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Using a professional service
If the manufacturer of the laptop or desktop PC can't or won't reset
the BIOS password, you still have the option of using a professional
service. Password Crackers, Inc., offers a variety of services for
desktop and laptop computers for between $100 and $400. For most of
these services, you'll need to provide some type of legitimate proof of
ownership. This may be difficult if you've acquired the computer second hand or from an online auction.
00000000000000000000000000000000000000000000000000 000000000000000000000000
Boot Winxp Fast
Follow the following steps
1. Open notepad.exe, type "del c:\windows\prefetch\ntosboot-*.* /q" (without the quotes) & save as "ntosboot.bat" in c:\
2. From the Start menu, select "Run..." & type "gpedit.msc".
3. Double click "Windows Settings" under "Computer Configuration" and double click again on "Shutdown" in the right window.
4. In the new window, click "add", "Browse", locate your "ntosboot.bat" file & click "Open".
5. Click "OK", "Apply" & "OK" once again to exit.
6. From the Start menu, select "Run..." & type "devmgmt.msc".
7. Double click on "IDE ATA/ATAPI controllers"
8. Right click on "Primary IDE Channel" and select "Properties".
9. Select the "Advanced Settings" tab then on the device or 1 that
doesn't have 'device type' greyed out select 'none' instead of
'autodetect' & click "OK".
10. Right click on "Secondary IDE channel", select "Properties" and repeat step 9.
11. Reboot your computer.
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