Question

Request to introduce a tool for cracking the Admin password

Asked by: kermanian

Hi, I have a vista notebook which was joined to the domain, I don't know why it is disjoined and now I am trying to logon locally. but the Administrator password is not working. Now, I can not logon to the system and I don't want to reinstall the windows.
I am looking for a good tool or rescue disk to reset the Local Administrator password. Could any one introduce me the best tool that you know. (for resetting the admin pass)

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Asked On
2009-11-02 at 06:29:02ID24863641
Topic

Windows Vista

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: LeeTutorPosted on 2009-11-02 at 06:34:16ID: 25719622

This site allows you to download files needed to create a bootable floppy disk or CD-ROM which contains a program that can be used to reset passwords on a Windows NT-based OS (such as WinXP and Vista):

http://home.eunet.no/~pnordahl/ntpasswd/
Offline NT Password & Registry Editor

It is a rather "geeky" tool; not a nice Windows graphical user interface.  You might want to check this page for a demonstration of its use, with screenshots provided in the article:

http://blogs.techrepublic.com.com/window-on-windows/?p=639
Reset lost Windows passwords with Offline Registry Editor

There is also a video about using this tool here:

http://blogs.techrepublic.com.com/itdojo/?p=140&tag=nl.e550
Video: Reset Windows passwords with the Offline NT Password and Registry Editor

 

by: netcmhPosted on 2009-11-02 at 06:34:54ID: 25719629

Here are the basic steps to activate Vistas Administrator account and assign it a password:

   1. Logon to Vista using a standard user account
   2. From the Start menu, navigate to the Command Prompt menu item in the Accessories menu
   3. Right-click on the Command Prompt menu item and select Run as Administrator
   4. Click the Continue button on the User Account Control dialog box
   5. At the command prompt, enter net user administrator password, and hit Enter
   6. At the command prompt, enter net user administrator activate:yes, and hit Enter
   7. At the command prompt, enter exit and hit Enter to close the command window
   8. Log off and logon as Administrator using the password you selected

This procedure activates a user account named Administrator and assigns it Full Control security privileges. The user name Administrator is reserved, so you cannot create a user account with this name even if you havent activated the built-in Administrator account. Depending on the local password policy of the computer, you might be required to enter a password of a minimum length or complexity, and not be allowed to use a blank password.

If you Forgot your Vista Administrator Password!

The User Accounts applet in Control Panel features the Create a password reset disk wizard. Using this wizard, a floppy disk or USB flash drive can be created that allows the password of a specific user account on a specific Windows Vista computer to be reset by the user. Possession of the reset disk is considered to be authorization to reset the accounts password. The reset disk can also be reused to reset the accounts password multiple times. However, you need to know the password of the account you want to create the reset disk for, and you must create the reset disk before you forget the accounts password.

To use the Vista password reset disk:

   1. Insert the floppy or USB reset disk in the computer
   2. Click the Reset password& item on the Vista logon screen to start the Password Reset Wizard
   3. Click the Next button
   4. Enter a new password
   5. Reenter the new password
   6. If prompted, enter a password hint
   7. Click the Next and Finished buttons
   8. Enter your new password to logon to the user account

If you Didnt Make a Password Reset Disk!

OK, you can reset a forgotten Windows Vista password without a Vista password rest disk, but you wont receive any help from Vista to do it. Instead, the Offline NT Password & Registry Editor (http://home.eunet.no/~pnordahl/ntpasswd/) is your ticket. This password editor not only works on Windows Vista, but also on all releases of Windows NT, Windows 2000, Windows XP, and Windows Server 2003. It works by booting from a CD or USB flash drive and selecting a few options in a command line menu interface. (Booting this password editor from a floppy disk is possible, but is not currently supported for Vista.)

NOTE: If you change the administrators password on a Windows XP or Windows Vista system that is using the Encrypted File System (EFS), all of the encrypted files will become inaccessible. The password for the Administrator account is used to create the EFS encryption key. Changing the Administrator account back to using the original password should restore access to the encrypted files, but I have not tried it.

There are many menu options in the password editor; if you only need to blank the Administrators password, here are the basic steps. If you need more detailed information, read the FAQ (http://home.eunet.no/~pnordahl/ntpasswd/faq.html).

   1. Download (http://files.filefront.com/cd070409zip/;8546251;/fileinfo.html) and burn the ISO file on to a CD or USB flash drive
   2. Boot from the CD or USB flash drive
   3. Hit Enter at the boot: prompt
   4. Select the boot partition (usually 1)
   5. Enter the PATH to the registry hive files (hit Enter for the default WINDOWS\System32\config)
   6. Hit Enter (1) for password reset
   7. Hit Enter (1) to edit user data and passwords
   8. Hit Enter to change password for the Administrator account
   9. Enter * to blank the password
  10. Enter y to blank the password
  11. Enter ! to quit the password editor
  12. Enter q to exit the change NT password utility
  13. Enter y to save the changes to the Windows SAM database
  14. Enter n to exit the program
  15. Remove the CD or USB flash drive and reboot the computer

 

by: kermanianPosted on 2009-11-02 at 08:02:52ID: 31648836

it is better that you check the Video file. it makes the process so easy.

20120131-EE-VQP-002

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