Kon Boot has been updated with numerous bug fixes, improvements, and support. The original free Kon Boot has some bugs, particularly with Windows 7. There are a few BIOS's which we are currently adding support for in some isolated cases; namely, select versions of phoenix 2005 bios. This is the only recorded BIOS (newer) which gives any problem. Of course, very outdated BIOS with small memory capability are not supported. The reason is simply not enough space/memory. Although, most of these older BIOS were for Win9X/ME and after XP was released, they have since been phased out. A new version (for a small fee) is available at the Kryptos Logic website, and I believe a few licenses will be given away sometime soon through hak5. On a side note, Kon Boot is not meant to compete or replace 0phtcrack or l0phtcrack, or any other password reset utility. Kon Boot is a password bypassing utility, leaving the original password intact. There are plenty of utilities to reset passwords which are freely available.