gutm
September 28th, 2004, 12:00 AM
Hypothetical situation: Locked out of Win XP Professional machine. Tried using this: http://home.eunet.no/~pnordahl/ntpasswd/ - didn't work. Tried using other logons/passwords - no luck. Any other ideas?
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MobilePCPhysician
September 28th, 2004, 12:12 AM
http://www.petri.co.il/forgot_administrator_password.htm
Good luck.http://forums.windrivers.com/images/smilies/wink.gif
Good luck.http://forums.windrivers.com/images/smilies/wink.gif
skiitz
September 28th, 2004, 12:43 AM
In c:\WINDOWS\system32\config\ you will a file called SAM. If you create a boot disk and delete the file it will remove all passwords (i think it might reset user prefences)
Then you can logon as an admin without a password.
I know this works as i have used it for a friend who forgot his password
Do a goodle if you need more info however it will reset the password for you. you can also copy the file to a floppy and there is a way of decrypting the password however i do not know what software in needed
Then you can logon as an admin without a password.
I know this works as i have used it for a friend who forgot his password
Do a goodle if you need more info however it will reset the password for you. you can also copy the file to a floppy and there is a way of decrypting the password however i do not know what software in needed
gutm
September 28th, 2004, 08:20 PM
Tried all of the above - no help. I've been able to use the boot CD on XP Home edition, but it didn't work with XP Professional. Beginning to think a reinstall is the only fix.
MobilePCPhysician
September 28th, 2004, 08:23 PM
Hypothetical?????
gutm
September 28th, 2004, 09:26 PM
Hypothetical?????
I was wishing I was dreaming... :sad:
I was wishing I was dreaming... :sad:
skiitz
September 28th, 2004, 10:08 PM
Tried all of the above - no help. I've been able to use the boot CD on XP Home edition, but it didn't work with XP Professional. Beginning to think a reinstall is the only fix.
Deleting the sam file will remove all passwords even with xp pro as i have had to do it. all you need is a NTFS boot disk.
To save you some time you need to know that reinstalling wondows will not remove the password it will still be there after the reinstall.
You could try a brute force attack on the SAM file. i have no idea how to do it however i found the following on another forum:
There are a few program options to brute force a SAM file. LC probably would be the best option, they redubbed it @stake LC4, and yes they sell it, but they have been before L0pht went with @stake from version 3 on.
(http://www.atstake.com/products/lc/download.html)
I believe if you uninstall your current load of LC and reinstall it, it reactivates the trial use. Not sure.
Another option is SAMInside. That will do a Brute Force on SAM files as well. (http://www.insidepro.com/eng/saminside.shtml)
Let me know how you go!
Deleting the sam file will remove all passwords even with xp pro as i have had to do it. all you need is a NTFS boot disk.
To save you some time you need to know that reinstalling wondows will not remove the password it will still be there after the reinstall.
You could try a brute force attack on the SAM file. i have no idea how to do it however i found the following on another forum:
There are a few program options to brute force a SAM file. LC probably would be the best option, they redubbed it @stake LC4, and yes they sell it, but they have been before L0pht went with @stake from version 3 on.
(http://www.atstake.com/products/lc/download.html)
I believe if you uninstall your current load of LC and reinstall it, it reactivates the trial use. Not sure.
Another option is SAMInside. That will do a Brute Force on SAM files as well. (http://www.insidepro.com/eng/saminside.shtml)
Let me know how you go!
gutm
September 28th, 2004, 11:19 PM
I deleted the SAM file - I ended up getting an error message stating that the file was corrupt or missing and I needed to reboot in safe mode. When I rebooted in safe mode I got the same error message and the computer automatically rebooted. I let it reboot several times with no luck. I finally decided to do a reinstall. I tried to do a repair install but that same error message kept popping up. I ended up installing "over the top", keeping the partitions and file system the same. That worked fine, with the exception of having to reinstall my MS Office.
MobilePCPhysician
September 28th, 2004, 11:28 PM
I deleted the SAM file - I ended up getting an error message stating that the file was corrupt or missing and I needed to reboot in safe mode. When I rebooted in safe mode I got the same error message and the computer automatically rebooted. I let it reboot several times with no luck. I finally decided to do a reinstall. I tried to do a repair install but that same error message kept popping up. I ended up installing "over the top", keeping the partitions and file system the same. That worked fine, with the exception of having to reinstall my MS Office.
If you got a message that said you needed to reboot in safe mode, what mode were you in then? I'm glad you achieved your goal, but I believe you achieved it the hard way...
If you got a message that said you needed to reboot in safe mode, what mode were you in then? I'm glad you achieved your goal, but I believe you achieved it the hard way...
gutm
September 29th, 2004, 11:35 AM
If you got a message that said you needed to reboot in safe mode, what mode were you in then? I'm glad you achieved your goal, but I believe you achieved it the hard way...
In both normal and safe modes I got the same message - either way I didn't have the option of typing in anything.
In both normal and safe modes I got the same message - either way I didn't have the option of typing in anything.
futuretech
September 29th, 2004, 12:15 PM
I have successfully used the ntpasswd utility to reset the admin password in XP Pro, but set it to the default blank password.
I then booted to the admin logon and set a new password.
I havent had any success changing the password and logging on only by using the blank option has it worked for me.
I then booted to the admin logon and set a new password.
I havent had any success changing the password and logging on only by using the blank option has it worked for me.
skiitz
September 29th, 2004, 06:33 PM
I deleted the SAM file - I ended up getting an error message stating that the file was corrupt or missing and I needed to reboot in safe mode. When I rebooted in safe mode I got the same error message and the computer automatically rebooted. I let it reboot several times with no luck. I finally decided to do a reinstall. I tried to do a repair install but that same error message kept popping up. I ended up installing "over the top", keeping the partitions and file system the same. That worked fine, with the exception of having to reinstall my MS Office.
Hmm,
Sorry if deleting SAM caused you too much trouble. When i found that deleting SAM would reset the password i tried it for a friend and it worked fine.
At least you have got back as an admin
Hmm,
Sorry if deleting SAM caused you too much trouble. When i found that deleting SAM would reset the password i tried it for a friend and it worked fine.
At least you have got back as an admin
Atodini
September 29th, 2004, 07:03 PM
Hmm,
Sorry if deleting SAM caused you too much trouble. When i found that deleting SAM would reset the password i tried it for a friend and it worked fine.
At least you have got back as an admin
Are you sure your friend had XP?
It works fine with 2K / NT but with XP it definitely doesn't!!!
For whatever reason XP is very different here.
Been caught out on this one a number of times, at least an over install will give you control again though...
John
Sorry if deleting SAM caused you too much trouble. When i found that deleting SAM would reset the password i tried it for a friend and it worked fine.
At least you have got back as an admin
Are you sure your friend had XP?
It works fine with 2K / NT but with XP it definitely doesn't!!!
For whatever reason XP is very different here.
Been caught out on this one a number of times, at least an over install will give you control again though...
John
skiitz
September 30th, 2004, 12:24 AM
Are you sure your friend had XP?
It works fine with 2K / NT but with XP it definitely doesn't!!!
For whatever reason XP is very different here.
Been caught out on this one a number of times, at least an over install will give you control again though...
John
Yes i am sure that he had windows XP. It was XP Pro. I cannot remember the site i found it from however when i found it it said for win2000 and win XP
As for the reinstall. When i have reinstalled windows it has not removed my admin password
It works fine with 2K / NT but with XP it definitely doesn't!!!
For whatever reason XP is very different here.
Been caught out on this one a number of times, at least an over install will give you control again though...
John
Yes i am sure that he had windows XP. It was XP Pro. I cannot remember the site i found it from however when i found it it said for win2000 and win XP
As for the reinstall. When i have reinstalled windows it has not removed my admin password
gizmo1_1
September 30th, 2004, 01:03 AM
http://home.eunet.no/~pnordahl/ntpasswd] ( [url) http://home.eunet.no/~pnordahl/ntpasswd[/URL]
I have used this many times. Create a bootable cd with the bin.
Make sure that your follow the instructions exactly (can be a little tricky) "*" for blank password I believe
Hasn't failed me yet.
I have used this many times. Create a bootable cd with the bin.
Make sure that your follow the instructions exactly (can be a little tricky) "*" for blank password I believe
Hasn't failed me yet.
gutm
October 7th, 2004, 05:40 PM
http://home.eunet.no/~pnordahl/ntpasswd] ( [url) http://home.eunet.no/~pnordahl/ntpasswd[/URL]
I have used this many times. Create a bootable cd with the bin.
Make sure that your follow the instructions exactly (can be a little tricky) "*" for blank password I believe
Hasn't failed me yet.
That's exactly what I tried, when it didn't work I tried to change it to something else - still didn't work. In my extensive Google search for an answer I found a article from someone who claimed to be the originator (he may be, I don't know) of the software. He said it won't work on XP because of the way the passwords in XP are handled. I'll post the URL when I find it...
I have used this many times. Create a bootable cd with the bin.
Make sure that your follow the instructions exactly (can be a little tricky) "*" for blank password I believe
Hasn't failed me yet.
That's exactly what I tried, when it didn't work I tried to change it to something else - still didn't work. In my extensive Google search for an answer I found a article from someone who claimed to be the originator (he may be, I don't know) of the software. He said it won't work on XP because of the way the passwords in XP are handled. I'll post the URL when I find it...
gizmo1_1
October 7th, 2004, 06:03 PM
That's exactly what I tried, when it didn't work I tried to change it to something else - still didn't work. In my extensive Google search for an answer I found a article from someone who claimed to be the originator (he may be, I don't know) of the software. He said it won't work on XP because of the way the passwords in XP are handled. I'll post the URL when I find it...
There is an options in there that sounds tricky. It is either write or commit changes. If you make the wrong selection It will not work. It stumped me the first time I tried to use it.
I have used this successfully on
Win2000
Win2000 server (without Active Directory)
Windows XP Home
Windows XP Professional
There is an options in there that sounds tricky. It is either write or commit changes. If you make the wrong selection It will not work. It stumped me the first time I tried to use it.
I have used this successfully on
Win2000
Win2000 server (without Active Directory)
Windows XP Home
Windows XP Professional
nunob
October 7th, 2004, 06:50 PM
There is an options in there that sounds tricky. It is either write or commit changes. If you make the wrong selection It will not work. It stumped me the first time I tried to use it.
I have used this successfully on
Win2000
Win2000 server (without Active Directory)
Windows XP Home
Windows XP Professional
It asks to write the hive files which is basically saving your changes to which you must say yes. I've fubared one system by trying to change the passwords but never had a problem just blanking them out.
I have used this successfully on
Win2000
Win2000 server (without Active Directory)
Windows XP Home
Windows XP Professional
It asks to write the hive files which is basically saving your changes to which you must say yes. I've fubared one system by trying to change the passwords but never had a problem just blanking them out.
kpataska
October 8th, 2004, 10:05 AM
I've used the boot CD NUMEROUS times on XP Home and Pro - never an issue blanking the password, which it is stated works best!
http://home.eunet.no/~pnordahl/ntpasswd/bootdisk.html
The only way to unlock!
And by numerous I mean in the 100's.
Hope this helps!!!
Kenny P.
Visualize Whirled P.'s
http://home.eunet.no/~pnordahl/ntpasswd/bootdisk.html
The only way to unlock!
And by numerous I mean in the 100's.
Hope this helps!!!
Kenny P.
Visualize Whirled P.'s
windrivers.com
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