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how can we change or get the Admin password while standing on a standerd user acc...

 

actualy the prob is , with my friends computer... his little brother sometimes uses his computer,, for that he created a user accout with blank password..n my friend works on admin acc with a password, but once he went out with out loging out ,his brother do some little button presses n some thing ,,we dont know what he did , n the little guy is telling he browsed through control panel,, may be accidently he changed or did some cahnges in user accounts section...now the admin pass is change,,

 

no problem with user acc....now we cant log on admin acc... how can we change or reset .. the admin password, while standing on user.. he dont need to re-install OS...

 

OS for the system is WinXP pro.....

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Forgot your NT admin password?

Reinstall? Oh no... But not any more...

 

* This is a utility to (re)set the password of any user that has a valid (local) account on your NT system, by modifying the crypted password in the registrys SAM file.

* You do not need to know the old password to set a new one.

* It works offline, that is, you have to shutdown your computer and boot off a floppydisk or CD. The bootdisk includes stuff to access NTFS partitions and scripts to glue the whole thing together.

* Works with syskey (no need to turn it off, but you can if you have lost the key)

* Will detect and offer to unlock locked or disabled out user accounts!

 

NT stores it's user information including crypted versions of the passwords in a file called 'sam', usually found in \winnt\system32\config. This file is a part of the registry, in a binary format previously undocumented, and not easily accessible. But thanks to a German(?) named B.D, I've now made a program that understands the registry. As far as I know, Microsoft provides no way of changing the password if you cannot log in as someone with appropriate privileges, except restoring the registry files from the rescuefloppy.

 

* You don't forget passwords?

* You never get boxes to admin when someone quits suddenly?

* Your vendor delivers a preconfigured system to you, but never have "freak" accidents and lose the password they've set on it?

* If so, what are you doing reading this?? Go read propaganda from your favourite software vendor instead.

 

2004-01-16:

 

* Completely new bootdisk system! Hopefully a bit easier to understand and run through.

* Support for easy change of RecoveryConsole parameters (one of them tells RecoveryConsole to NOT ask for admin password).

* A few bugfixes. For those of you wanting to look and build chntpw from the source, it should now compile??

 

2003-04-26:

 

* Newer NTFS driver and internals of writebacks changed a bit on floppy, may fix some hangs reported on writing back to NTFS.

* No changes to chntpw program itself

* John Simpson supplies nice description on how to fix up lost admin password in ActiveDirectory.

 

2003-02-25:

 

* NTFS "hang on writeback" bugfix on floppy/CD.

* HighPoint (hpt) IDE chipset support added. No idea if it works.

* Highly expermimental and not complete feature added: User promotion! Promote user into admin group.

o Will add any user to administrator group, remove from all others.

o VERY LITTLE TESTED YET!

o Limitations: Not working on users which is not in any previous group, may not work at all on some setups, will not check policies: Guest can be promoted, but will most likely not be able to log in anyway because it is usually denied in security policies. I know how to do this, but it is not finished yet. This is still work in progress!

o To use, enter @ at password prompt. Change is set even if you answer no on "do you wish to change" question. Please do not try it if you do not want to risk a complete system reinstall.

o I need people that can test this on systems they are willing to risk a reinstall on! Please contact me if you have any info.

 

2003-01-26:

 

* Fixed a bug in the registry handling causing a crash if there were garbage at the end of the file (seems to be common). Thanks to Jim Andersen for supplying a file showing that.

* Have gotten numerous reports saying that changing passwords often won't work (from not able to login, to administrator account vanishing!?!), but blanking will work OK. So I suggest blanking!

 

2003-01-12:

 

* Some new drivers on bootdisk.

* No other changes, password logic and editor (chntpw) same as last release

 

2003-01-12:

 

* Registry editor now supports adding/deleting keys and values! See regedit.txt for details on how the registry editor works. But:

o No support for expanding the file yet, only free space in the file is used.

o Add/del of subkeys when key has more than some hundred subkeys not supported yet. (will give error).

o Add/del of keys on NT3.51 not supported yet.

* Started building a more menu-oriented and cleaner interactive interface. Should ease up things for most people.

* Generally no other changes to CD or floppy

 

2002-12-14:

CD image now available. It's just the floppy stuff and scsi-drivers all put into a small bootable CD image.

 

2002-12-13:

Maybe not bad luck this time!

 

* Previous floppy was accidentally buildt only for PIII or higher CPUs. Fixed. This one should work down to 486.

* New functionality:

* Possible to reopen locked-out or disabled accounts!

 

2002-12-08:

Finally a new release!

(now removed since it's the same drivers etc as 2002-12-13)

 

* New feature: Blank passwords!

* Optionally specify user with RID instead of name.

* More and better drivers (well, maybe)

* Bootdisk has new NTFS-driver with safer writeback (I hope).

* Tested on: NT4: wks, server, PDC. Win2k: pro and server (AD not supported), XP pro.

* Started a FAQ

 

 

2002-01-16:

Everything should now be on the new webhost, including the source. Thanks to Thomas E Z for hosting.

2001-10-22:

Bootdisk & chntpw updated:

 

* Now only writes back files that have actually changed. This may help NTFS-problems some people have reported.

* Logic when encountering blank passwords was bad, often breaking the password entry, making it impossible to log in. I've gotten some mails about that. Why not try the easy way first? TRY BLANK!

* Floppy with more and better(?) drivers, and fixed manual driver loading.

 

THIS SOFTWARE COMES WITH NO WARRANTY WHATSOEVER. THE AUTHOR IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY THE (MIS)USE OF THIS SOFTWARE!

It's VERY ALPHA yet, and relies heavily on undocumented structures and methods. You have been warned!

 

No problem.. It's right here, and free!

 

Look here for more info on:

 

* Bootdisk: Instructions & image to download. Last update: 040219

* Source & documentation Last update: 040116

* Frequently asked questions Last update: 040219

 

Ports & other versions:

 

* Grenier's DOS-port

 

Sitedesign by http://www.ice-warrior.info

 

040219, pnordahl@eunet.no

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