[NTPASSWD boot CD-ROM]
[two different floppies]
[ERD Commander 2002 boot CD-ROM]
WARNING: use these tools at your own risk.
These tools work by modifying the SAM file on your computer. Manually renaming the SAM files at C
WINNT\SYSTEM32\CONFIG\SAM and C
WINNT\REPAIR\SAM should also reset the local Administrator password to blank [and would also probably delete all other local accounts which you had created on your computer].
This can be done by booting from a DOS or Windows 9x boot floppy [though if your hard drive is formatted in NTFS format, you can't rename files this way unless you purchase NTFSDOS Pro from www.winternals.com
]. You can also rename the SAM files by moving the hard drive from the computer to another Windows 2000/XP/NT computer, or by installing a second copy of Windows 2000/XP/NT to a different folder on the computer.
Problems with using the floppy disk methods above are supposedly rare, but can happen. If you do try one of the floppy disk methods above and your computer will no longer boot to Windows, try renaming the SAM files as described above.
If all else fails, you can always reinstall Windows [though you could lose some data or have to reinstall other software after doing this].