For Windows 2000 and XP systems, this directory should be located under windows/system32/config or winnt/system32/config. Once the partition is mounted, you must locate the directory containing the SAM file. If you have an NTFS partition, follow the steps in Prev tuts to mount the NTFS partition with write permissions. Replace hda1 with your Windows partition. If you have a FAT or FAT32 Windows partition, click on the drive on the desktop to mount it, then right-click on the hard-drive icon and choose Actions|Change read/write mode, or on the command line, type: sudo mount -o rw /dev/ hda1 /mnt/ hda1 To reset the password, you must have write permissions on the Windows partition. Once you are finished with these commands, the chntpw utility is in /home/knoppix and ready to use. This conversion is necessary to extract only the chntpw executable file. This command makes use of the alien utility, which has the ability to convert files between. tgz filenames to match the version of chntpw that you downloaded. Open up a terminal, and run the following commands: alien -to-tgz chntpw_ 0.99.2-1_i386 tar xvzf chntpw- 0.99.2. Instead, you must convert it to a tar file, and then extract out the chntpw utility. Most of the Knoppix system is read-only, so you can’t directly install this package. You can get the latest chntpw package from. It saves bandwidth and time to download the package directly. However, to be certain you retrieve the latest version of chntpw, you must run the apt-get update, which downloads about 10 times as much data per repository as the 85-KB chntpw package. You could use the apt-get wrapper, which is included for Knoppix, to download chntpw. Luckily, the chntpw tool is now part of Debian unstable, which means that you can grab it directly from Debian’s repository. While you can simply create an ntpasswd boot floppy, this means yet another rescue disk to carry with you, and the beauty of Knoppix is that you have access to all of your recovery tools in a single disc. However, this gives you a floppy image and requires that you mount multiple loopback entries to extract the utility from the floppy image to use under Knoppix. The chntpw tool is part of the ntpasswd package, which can be downloaded in boot floppy form from its web site at. If you have a Knoppix disc, you can download and use the chntpw tool, which is a small program that lets you reset the local passwords on a Windows system, and return to your system. However, unlike in Windows 9x, if you forget your Administrator password, your only recourse is to purchase a tool to reset your Windows password or to reinstall Windows to create a new administrator account. With Windows NT, 2000, and XP, Microsoft has increased its user security by creating different user accounts on the same system and passwords that protect them. If you forget your password in Windows 9x, resetting it is as simple as deleting a. The Windows 9x series did offer usernames and passwords, but every user could overwrite every other user’s files, and the system did not offer any real security. User accounts have an interesting history in Windows. Use Knoppix as your locksmith to reset the password to a new value or even completely erase it. It’s like being locked out of your car without a spare set of keys and without a way to contact a locksmith. If you forget a password for your user on your Windows system (especially if the user is administrator), your computer immediately becomes a paperweight.
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