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Recover an admin password?

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Does anyone out there know how to recover a Windows NT 4 workstation administrator password without reinstalling NT? My predecessor left without letting anyone know what it is.

9 replies

by jasmith

You can use a password cracking program like lophtcrack. Although many people use it for evil, it can still be very helpful at the right time (i.e. guns don't kill people, people kill people).

Good luck,
James

by macdoc711

Thanks. I found the info at the l0phtcrack site sketchy, (understandably) but it was somewhere to start.

by dmiles

You can install NT on a fat 32 file system in the temp folder and set another password
This will require that you have the disk space to install,then you can delet the previous version.

by shanghai sam

The utility at the below site is a life saver. You have to make the bootdisk by following the instructions, but it is worth it. This tool should be in every admin / helpdesk persons tool kit.

It boots the system under Linux and gives you access to the registry to change the passwords. It is well documented. Read and follow the instructions. Test it on a spare box first if you are concerned.

http://home.eunet.no/~pnordahl/ntpasswd/

The commercial option is go to the Winternals web site and check out their recovery software. On a workstation I would go for the linux utility first.

Aaron

by macdoc711

Thanks. Certainly does have useful info there but I was a little apprehensive about trying this since the author covers himself/herself over and over with disclaimers. I would have tried it out though, just out of interest, if we had a spare NT box.

by griz1975

If you can still log onto the PC with another account, try adding a login script to change the local Administrator password. I use it to set the default Local Admin password on all our clients at bootup. Here's the script:

@echo off
rem Changelocal passwords on machines
net user Administrator password
@echo on

(password) is the actual password you want for the local admin account.

Hope this helps.

by macdoc711

You are a lifesaver! Thanks! So simple and yet so effective! It makes me question the real security of NT when it is this simple to reset the Admin pwd but for my situation it was fantastic. Thank you! Thank you! Thank you!

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