Reset windows password using linux live CD

Reset Windows 7 passwords with Linux Ubuntu

(Applicable to older windows ver. too )

Have you experienced the tragedy of forgotten passwords to log into your windows 7? prior to re-install can be tried by using the tools on ubuntu linux system whose name chntpw, the main requirement is that you understand a little about Linux and the CLI have a LiveCD Linux Ubuntu (any version).

Steps you can do is:

1. Booting the PC / laptop using the Ubuntu Linux LiveCD
2. Select Menu Run Ubuntu Linux without installation.
3. On the Desktop in the Places menu Select Windows to the System Drive can be mounted so.
4. Update the repository with: root@ubuntu: apt-get update
5. Install the package chntpw way: root@ubuntu: apt-get install chntpw and let the installation process to complete.
6. Log into the CLI in Application – Accessories – Terminal and select: / Windows/System32/config following manner:

root@ubuntu: cd/media/[name of the windows partition/Drive C:]/Windows/System32/config

7. View user who is in her windows by running:

root@ubuntu:/media/187823A87823839A/Windows/System32/config# chntpw -l SAM

chntpw version 0.99.5 070923 (decade), (c) Petter N Hagen
Hive name (from header): <SystemRootSystem32ConfigSAM>
ROOT KEY at offset: 0×001020 * Subkey indexing type is: 666c
Page at 0xf000 is not 'hbin', assuming file contains garbage at end
File size 262144 [40000] bytes, containing 6 pages (+ 1 headerpage)
Used for data: 247/52256 blocks/bytes, unused: 9/4896 blocks/bytes.

* SAM policy limits:
Failed logins before lockout is: 0
Minimum password length : 0
Password history count : 0
| RID -|———- Username ————| Admin? |- Lock? –|
| 01f4 | Administrator | ADMIN | *dis/lock* |
| 01f5 | Guest | | dis/lock |
| 03e8 | totti | ADMIN | *dis/lock* |

In the top menu for the user Administrator and Totti in the status dis / lock -disable/lock, never to be edited please is enabled by selecting the first number four on the menu:

- – – – User Edit Menu:
1 – Clear (blank) user password
2 – Edit (set new) user password (careful with this on XP or Vista)
3 – Promote user (make user an administrator)
4 – Unlock and enable user account [seems locked ]
q – Quit editing user, back to user select

after that it commands the road: chntpw SAM-u Administrator to change the administrator password.

root@ubuntu:/media/187823A87823839A/Windows/System32/config# chntpw -u Administrator SAM
chntpw version 0.99.5 070923 (decade), (c) Petter N Hagen
Hive name (from header): <SystemRootSystem32ConfigSAM>
ROOT KEY at offset: 0×001020 * Subkey indexing type is: 666c
Page at 0xf000 is not 'hbin', assuming file contains garbage at end
File size 262144 [40000] bytes, containing 6 pages (+ 1 headerpage)
Used for data: 247/52256 blocks/bytes, unused: 9/4896 blocks/bytes.

* SAM policy limits:
Failed logins before lockout is: 0
Minimum password length : 0
Password history count : 0
| RID -|———- Username ————| Admin? |- Lock? –|
| 01f4 | Administrator | ADMIN | *BLANK* |
| 01f5 | Guest | | dis/lock |
| 03e8 | totti | ADMIN | |

———————> SYSKEY CHECK <———————– SYSTEM SecureBoot : -1 -> Not Set (not installed, good!)
SAM AccountF : 0 -> off
SECURITY PolSecretEncryptionKey: -1 -> Not Set (OK if this is NT4)
Syskey not installed!

RID : 0500 [01f4]
Username: Administrator
fullname:
comment : Built-in account for administering the computer/domain
homedir :

User is member of 1 groups:
00000220 = Administrators (which has 2 members)

Account bits: 0×0210 =
[ ] Disabled | [ ] Homedir req. | [ ] Passwd not req. |
[ ] Temp. duplicate | [X] Normal account | [ ] NMS account |
[ ] Domain trust ac | [ ] Wks trust act. | [ ] Srv trust act |
[X] Pwd don't expir | [ ] Auto lockout | [ ] (unknown 0×08) |
[ ] (unknown 0×10) | [ ] (unknown 0×20) | [ ] (unknown 0×40) |

Failed login count: 0, while max tries is: 0
Total login count: 4
** No NT MD4 hash found. This user probably has a BLANK password!
** No LANMAN hash found either. Sorry, cannot change. Try login with no password!

- – – – User Edit Menu:
1 – Clear (blank) user password
2 – Edit (set new) user password (careful with this on XP or Vista)
3 – Promote user (make user an administrator)
(4 – Unlock and enable user account) [seems unlocked already]
q – Quit editing user, back to user select

Please select whether to clear the password or create a new passwd.

Please select whether to clear the password or create a new passwd.

Once completed please exit and unmount the windows partition had been hand-picked by Places and restart the PC and go into Windows it, please go to the windows with a new password or no password, here I select blankpassword.