How do I recover lost administrator password?


I have lost my administrator password in winnt 4.0 .

How do I recover it? Please give solution for me


senthil andavan


This question was answered on November 30, 2001. Much of the information contained herein may have changed since posting.

Hi, According to the Inside NT text book, there is not a way, and you must reinstall This is not entirely true.

There are several utilities to accomplish this task

Some you will have to pay for, one is a utility at Check on how to recover

Administrator password cleanly.

There are also several utilities you don't have to pay for that will

break the password L0pht Heavy Industries is one of them It will dump the hash codes from the workstation in question and run through a brute force decrypting scheme to get your password

Visit their site at (note that is a zero, not the letter) and then highlight "LC3 (L0phtCrack)"

The README that's included says it can get the local passwords from a password dump file, generated either from a companion SAMDUMP utility or the hidden compressed SAM file in \winnt\repair\sam (L0phtCrack (LC3) 1.5 doesn't require admin rights) However, Admin rights can always be achieved using a program like GetAdmin (available at with MS expand.

Good Luck and Hope This Helps!

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Posted by Phoenixaz of Chandler-Gilbert Community College on November 30, 2001