gHacks technology news » bios password http://www.ghacks.net A technology blog covering software, mobile phones, gadgets, security, the Internet and other relevant areas. Tue, 10 Nov 2009 01:33:24 +0000 http://wordpress.org/?v=2.8.5 en hourly 1 Reveal or Reset the Bios Passwords http://www.ghacks.net/2008/06/07/reveal-or-reset-the-bios-passwords/ http://www.ghacks.net/2008/06/07/reveal-or-reset-the-bios-passwords/#comments Sat, 07 Jun 2008 14:33:47 +0000 Martin http://www.ghacks.net/?p=4897 Password protecting the Bios is considered a weak protection, something that professionals can find out or reset in no time. Besides the obvious possibilities to set a jumper or remove the bios battery to reset the bios password it is also possible to reveal or reset the bios password by using a software like CmosPwd which is available for Windows, DOS and Linux.

Most users will probably run the application in Windows. To do that they need to access the command line and install a driver that gives “direct port I/O access for specified ports to user-mode process (ring 3) using Ke386SetIoAccessMap and Ke386IoSetAccessProcess kernel functions.” The driver is located in the Windows directory of the software package after unzipping it to the computer.

The command ioperm.exe -i is used to install the driver which can be uninstalled with ioperm.exe -u after the bios password has been revealed. Once the driver is installed the bios password can be revealed with the command Cmospwd_win.exe which displays a list similar to the one below.

cmos password

The application requests the password for all known bioses. Only one hit will be found obviously which in the case of my bios was test in the Award 6.0 line. Reseting the bios can be initiated in DOS with the command cmospwd /k. Please note that the cmospwd.exe file is located in the DOS directory of the application. It can also be reset with the cmospwd_win /k in Windows.

Most notebooks store the bios password in an eeprom which can only be retrieved with an eeprom reader.

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]]> http://www.ghacks.net/2008/06/07/reveal-or-reset-the-bios-passwords/feed/ 7 How to bypass your bios password http://www.ghacks.net/2006/02/27/how-to-bypass-your-bios-password/ http://www.ghacks.net/2006/02/27/how-to-bypass-your-bios-password/#comments Mon, 27 Feb 2006 14:02:16 +0000 Martin http://www.ghacks.net/?p=336 how to bypass your bios password" explains in detail various methods that bypass the bios password. So, if you are in need, take a look and try the available methods.]]> A bios password prevents access to the bios for unauthorised users. Sometimes this password gets forgotten and you face the difficulty to find a way to enter your bios again. The article “how to bypass your bios password” explains in detail various methods that bypass the bios password. So, if you are in need, take a look and try the available methods.

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