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Laptop computer passwords removal


Laptop is best not to readily set a password, power-on password as the laptop did not like the PC can be stored in the CMOS circuit through the discharge cleared, newer notebooks are now the password stored in the logic circuit board of a few the individual is unable to break.
But for the older model laptop, you can try the following method may be able to lift the notebook's power-on password.
First, change the machine's hardware configuration, such as the hard drive to take down, then restart the Setup program will automatically enter and remove power-on password. Second, try to find a chip on the motherboard, this chip commonly known as 818 chips, is generally "MC146818" 24-pin, 12 feet short and 24 feet a second, or find a marked "MC14069" chip, its 14 feet short of the ground, and maybe you can achieve the purpose of clearing the password.

Users can also use a password diskette to solve the problem (the password service diskette in the boot every time you set or modify the generated password, please keep it). Specific steps are as follows: in the drive insert the password service diskette. Press Enter, the following message appears: Set Pass Again? (Y / N) press Y to run TSETUP program, set a new password. Press N to restart the computer.
Password service diskette must be inserted in the drive, otherwise the display will return to the Password =. In addition, when using the password service diskette should pay attention to the following two questions: If the BIOS boot priority is set to hard drive or optical drive, press the reset button, keep pressing the F key to make sure the boot from the floppy drive. If the computer is in recovery mode, turn the power will not work when the password service diskette. At this time, also first press the reset button.
For older models of laptops, the BIOS password to protect the existence of a "back door." You can try the method described below. Prepare a blank formatted floppy disk, another computer, a binary editing software (such as Norton DiskEdit or UtralEdit 32, etc.).
Specific steps: start another computer, open the binary editor, insert the floppy disk drive, modify the first sector of a floppy disk the first five bytes, so that it becomes: 4B 45 59 00 00, attention is the first boot sector 0 sector, not the error correction. Then save the changes, you now have a key disk. This floppy disk into the laptop's floppy drive, press the reset button to restart, when prompted for a password, press enter, the system prompts you to set the password again. Press "Y", Enter. Then you see the BIOS setup screen, you can reset a password for the new. Map
To ensure data security, we recommend you install WIN2000/NT or WINXP operating system, and use the NTFS-formatted partition, this is actually more than simply set the boot password, to better ensure the system is installed.
Some laptops also now provides a fingerprint identification system boot installation steps to replace the traditional BIOS password protection.

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