Monday, June 30, 2008

Recovering Windows XP/Vista passwd Part 1

Here i am going to start a series of posts on how to recover/reset windows nt/xp/vista password
Part 1:
here we are going to use an old linux utility chntpw to reset user password

Requirements
  • Physical access to the windows box.
  • CD drive nd cd bootable bios settings.
  • Live linux boot disk with most common disk drivers and chntpw download it from here.
  • A little time.
Procedure
  • Download the 3mb linux image from above link.
  • Extract the zip file to get the iso image.
  • Burn iso image using ur favorite burner.
  • Change bios settings to boot from cd drive before HDD.
  • If bios is protected with password, remove case find the battery on motherboard, take it out, u may also change jumper near to it.
  • put the newly burned cd to drive, restart the computer,
  • when promted like "boot:" just hit enter (depends on ur hardware)
  • it will list the disk drives found...
  • enter the number corresponding to windows partion + enter
  • when promted for path, /windows/system32/config is the deafult hit enter
  • choose password rest on the next option.
  • then edit user data and passwords
  • it will list all users on the system, enter the user name or RID which s shown right of each user.
  • Now u will option to set/reset password, promote user etc. best choice is to reset password of admin since set passwrd may not work in xp or higher
  • u can repeat for more users . at end quit by "!".
  • again quit by "q", it will ask for saving changes press "y".
that s it...
Next post i will tell u how to find the passwords (no reset )...