There are a number of tools ranging from freeware to commercial software.
- John the Ripper
- Emergency Boot CD: This CD contains a number of utilities, including password recovery and cracking tools.
- Offline NT Password and Registry Editor
- Login Recovery
- Ultimate BootCD
If you are starting to get the feel that Windows passwords aren't that secure, especially if one manages to get physical access to the box, you are correct.
This was first published in August 2005