One way is to use the Linux password editor boot floppy. It
allows you to change any password in the Administrators group.
http://home.eunet.no/~pnordahl/ntpasswd/
Go to "Bootdisk", near the bottom of the page is the download.
If you are not Linux savvy, READ CAREFULLY as you go, The
defaults are usually OK, but you need to change to "y" to actually
write the change. The default there is "n"
Another method, which is not as easy, is to delete(rename !) the sam file.
This
will create a blank Administrators password and nuke your old login
which you will need to re-create, not to mention the fact that you need
to get access to the file via a parallel install or hang the disk off
another
machine.
c:\%windir%\system32\config\sam
TDM