Saturday, January 19, 2008

Tuesday, January 15, 2008

How to Bypass BIOS Passwords

http://labmice.techtarget.com/articles/BIOS_hack.htm - "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 theirpassword, 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 password on most systems."

Sunday, January 13, 2008

New MS Office File Format

Just like the Open Office and Sun Office format, the Office 2007 files are actually zip files made up of the components of the files, which are mostly xml files, but also include images and other media if you have placed them inside your Office File.

So, you can change for instance the file extension docx, to zip and then open the file with a zip program or the built in zip program from Windows. This will show you a list of the component files with separate xml files for things like styles, comments, headers, fonts and the content itself. You can then remove any of these without affecting the other elements of the files. You can even edit for instnace the content xml file without changing styles and other elements.

So, if your docx or xlsx file gets corrupt, you may be able to isolate the corruption by selectively removing the various xml files (of course always keeping a copy of the original, in case something goes wrong).

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