Resetting windows passwords

I had to reset the password of an account on a system running windows 7. There is a wonderfull linux live CD to do the job really easy.
Go to and download the according ISO image. Burn it and boot your windows machine.

After sysresccd has booted mount your windows partition:

ntfs-3g /dev/sda1 /mnt/windows

Change directory:

cd /mnt/windows/Windows/System32/config

In there you should find a file named SAM.
List users by running:

chntpw -l SAM

Clear password:

chntpw -u  SAM

Chose 1 to clear the users password.
Write this changes to disk by pressing Y.

Taddaaa. Reboot. Easy as can be.

I presume that you do have some basic linux know-how. e.g. how to find partition types. If you do have problems doing this leave a comment.


  1. Thank you, I have recently been searching for information about this topic for ages and yours is the best I have discovered so far.

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