mkdir -p /mnt/windows
mount -v /dev/sdc5 /mnt/windows
find /mnt/windows -name SAM
chntpw -l /mnt/windows/Windows/System32/config/SAM
chntpw -u user /mnt/windows/Windows/System32/config/SAM
umount /mnt/windows
mit chntpw Windows Passwort zurücksetzen
press 1 + Enter to clear the user password,
then q + Enter to quit the menu.
Finally press y + Enter to confirm you want to save the
modifications made in the SAM file