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Windows Key can reset your Windows password for you. This is different from the other tools, in that it doesn't recover a list of user passwords or even recover from a file. Windows Key creates a bootable CD (or USB device) you can use to boot the machine and recover the password.
Windows Key is simple to use, and it can reset both local (standard version) and domain admin account (Enterprise edition only) passwords. It promises a 100% recovery rate. Although Windows Key has a free trial, you'll have to pony up for the full version (Standard $39.00 USD, Enterprise $295.00 USD) before you can really recover any passwords.
Windows Password Unlocker also creates a USB or CD that can then be booted to recover passwords.