Ophcrack is a Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with a GTK+ Graphical User Interface and runs on Windows, Mac OS X (Intel CPU) as well as on Linux.
There is also article and more screen shots at Lifehacker:
Extremely impressed at the ease and speed with which the Ophcrack Live CD cracked my Windows admin password when I tested it out last a few weeks ago, I thought it might be useful to throw together a quick guide detailing how to use this powerful little utility.
Crack a MS- Windows 7 / XP / Vista password with Ophcrack Live CD
Whether you need to recover the lost password to a Windows account, you're looking to ensure that your passwords are secure, or you're a super l33t h4x0r, the Ophcrack Live CD is a pretty useful tool.
Ophcrack is an amazing program if you can get it to work properly. I understand that many of you are frustrated that you can’t use it to crack your computers. The truth is you’re going to need a better table. If the password you are attempting crack isn’t simple, then you’re out of luck. Ophcrack requires you to purchase their complex tables for a hefty price. Try looking on pirate bay and other sites for special tables.
ophcrack is not a good product
won’t work on windows 7
I have burned the ophcrack iso onto disk but how to you use it? I’ve put the disk into the computer I want to access but nothing happens. please help. thanks
Try putting your BIOS to CDROM then restart your computer. It’ll work fine.
Ophcrack is perfectly working on Windows Vista and XP SP2 & SP3 but it doesn’t work Windows 7
I have tried several futtile attempt on Windows 7 but fail to gain access on Windows 7
Make sure you have the updated version for windows 7. Microsoft changed the hashing method in windows 7 so any other version will not work
try getting the updated version. Microsoft changed the hashing method in windows 7 so the older versions of the program will not crack windows 7 passwords.
You need to change your boot order in your BIOS. Change it to boot from disk drive. In the BIOS, the disk drive name is usually the actual name or brand of your disk drive. That can be found in your system info. Different pcs use different BIOS. Try pressing F2 or DELETE, possibly F10, you will have to figure out wich one gets you into BIOS. You will press this button repeatedly during start up. This should work asueming that the ISO was downloaded correctly and burned correctly.
Anyone who want to reset the password go for winternals ERD commander it can be downloaded ISO image and burn to disk then boot from it. you will be able reset you administrator password. it works server 2003 , i have done it so go for it
I cannot find where to go to resete the Windows Server 2003 Admin password. I have been going around for hours now.
Pleeeease heeeelp
its not tht hard 2 do
go to cmd in safe mode
type in net users
net user all
net user (name of user here)
and then pressspace and hold down shift and press 8
what if I dont know the name of the user?
thats what the “net user all” command is for
you’re an idiot. that only works if you “already” have admin access
You cannot do that when the admin account is locked and is the only account.
you sir, are an idiot.
Hey I used the ophcrack for vista, booted the pc from cd and it did not find the password, it said password not found
hey yeah i got the same problem. I’ve been searching on internet but haven’t found an answer :S
remember it is a live cd and there are a ton of rainbow tables that are separate to use. the disk only contains so many and most common ones used. i would google tables and see what happens
If the password is too complex you’ll need to get one of their paid for tables, the free version can only do so much. If you have a password such as ABCDefg12345, that is too long for their standard set. But if it is just Abcd1234 (ish), then it would be much easier and their standard set of tables should be able to solve it.
Man whoever said to put 0 and 1 in the box is a genius. That solved my problem of getting the error message about the mnt.
Example: 01
your rite i did that aswell and it worked at first i just put in zero cus my com screen is dark so i can barely see but thanks man and crack team.
i need help i cant download and my adimistrator lost it password what do i do?
i nedd help
If you are able to log on as admin, open command prompt and type:
net user (your admin accounts name) *
It will then allow you to make your own password.
ex: net user Admin *
If not, run it in safe mode and try.
i loaded it onto a windows 7 computer and it loaded and then said “abnormal Exit”…. HELP????
The same thing happens to me after I access ophcrack and try to load a table in. I was able to get ophcrack to use bruteforce to crack one password (4 letters) but bruteforce only works for passwords less than 5 letters. Whenever i click the tables on top then click install on vista free then navigate to the location of the tables and click ok. the ophcrack exits on me. Any help on this problem would be appreciated.
Thank You
there is oph crack for windows 7 and windows xp you need to run the right one. i have no problems with any .
Yes my friend Ophcrack only works perfect On Windows XP and Vista not on Windows 7.
What a pity!
For some reason, Ophcrack doesn’t list the user account that I’m looking for. It just lists Guest, HelpAssistant, ASPNET, etc.
where can i find tables for window 7 64 bit
i downloaded and got no response frm oph crack. it also shows virus indication
pls i realy dont know how to use the windows xp crack pls help me
i use oph crack, it works fine on windows 7 and xp, easy program to use
jingys u need to burn the iso to disk then once done re-boot the pc u want to use it on with disk in drive
make sure you tell it to boot from cd , just wait it will do rest for you, and bam all done :)
Which table set are you using, because I’ve been trying on 7 and I can’t get it to work, thanks.
hey when i start up my computer with ophcrack and click enter on the cd rom it just goes stright to my loginscreen
I have oph crack xp i try but -?
LM passwd 1……….NOT FOUND …NT passwd…….NOT FOUND pls help me……….
i got the same problem did you fix it?
all i get is a boot failed message, help!
Please help!!! I have 2 accounts on my comp. One has no password and is a user account and the other is my admin account. A very nice person (not) changed my password to my admin account. I have downloaded the ISO CD correctly but can’t acess my BIOS on my ASUS N61J to get it to boot form the cd drive HELP!!!!
When will there be windows 7 and 8 tables for us to use?
i tried ophcrack and it worked in windows7 like “you-wont-beleive-me”.Thanks to thecrack team!!
Martin, which version did you use? Did you use the LiveCD version for Vista?
This software works fine on Windows 7 and XP. My Sony VAIO works just fine. I don’t know how you guys can’t boot. Try calling your computer’s manufacter.
how i will used ophcrack in windows7?
ophcrack for vista is not work for vista…..where i find ophcrack for windows 7..please send me the link…..
Anyone know if there’ll be a 64-bit version? 32 won’t work on 7…
I had to hire someone to fix my computer ecause i lost my password and they had to reinstall my windows 7 ultimate software and eversense i got it back a network driver hasn’t been connecting my computer is slow and it has a cracked hinge. HEEEEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLPPPPPPPPP!
(Only Fourteen Years Old)
every one seems to have problems cracking passwords on windows 7. i just found the right tables on piratebay and it worked on an experiment i delibrately conducted. i cracked a partially strong password with 11 characters.
look at the dates. you’re two years later than most of the people
For the folks that get a boot error, you need to create a drivers disk for you drive controller drivers.
Hit F6 when booting up to add special drivers.
You can also use UltraISO and edit the ISO before burning and inject the new drivers into the correct folder then burn.
OphCrack does work on Windows 7. You must download the Ophcrack for Vista which works for 7 too.
Good luck!
Assuming you have 32-bit and your password isn’t too complex…I’ve been trying on 64-bit with my very long password :)
I get no results from Ophcrack Vista too. After waiting for about 15 to 20 minutes, it ends up with password not found. Is this because the version I’m using it on is the business version or is it just that Vista’s still too powerful? Do we need more tables or other methods?
More than likely the password was too long or too complex, another set of tables would probably be good :)
I am using the live cd on windows 7 and it was able to find all the passwords except the admin’s, and i don’t know why. I need some answers. But it is really Good.
Worked great for me! The funny thing was that it dint find the password i had set, but suggested another password that worked equally well!! Saved my neck! Thank you guys!!! really!!
i rather like UBCD and password recovery tool !
ophcrack is nice but don’t work on several manufacturer brand …
Sebastien
Ophcrack DOES work on Windows 7. For those that are having problems (computer just booting up to the Welcome screen) after you’ve inserted the Ophcrack CD, you need to change the BOOT ORDER in BIOS. It’s very, very simple to do. Just restart computer and press either, Esc, Delete, F2 etc. (whatever key your computer uses to enter the Set Up Menu. You should find an option for BIOS and somewhere in there you’ll find a tab that says, BOOT ORDER. You have to change the sequence so that the computer boots up from the Optical disk/CD drive instead of the hard drive. Make a note of the original boot up sequence on a piece of paper if you don’t want to make this a permanent change. After you save that the computer restarts on it’s own.
After you’re done using Ophcrack, you can repeat the same steps to change the boot order the way it was prior to changing it to boot up from the Optical Disk/CD drive. There are plenty of step-by-step tutorials online to do this and it’s easy peasy to do. I suck at using computers but Google is my friend and I figured this out on my own.
can you please answer my question below? I watched several videos and read several questions but no one ever mentioned my problem… maybe I’m not looking enough… please give advice??
Question: So, I tried using ophtrack on a usb rather than burning it on a cd. Everything was fine up to the last step when it loads and cracks the NT Pwd. But, it doesn’t crack the password. instead, it just says “not found” in the NT Pwd column. Is it because my password is too complicated?- i remember that my password was a short sentence- like 15-20 words with no numbers. Is that too complicated for it to crack?
Also, on a sidenote- my computer has windows vista..
There is no reliability in using ophcrack cuz sometimes it cracks the passwordword in win 7 and most of the times it doesn’t. So i would recommend KONBOOT which almost everytime opens the admin account wihout a password. And then you can easily change the password using command prompt.
All I get is a black screen after all the text, and it stays like that.
Fantastique:
Systeme Windows 7
recouvered password in 6 minutes.
worked for me
Thankx guys keep up the good work.
ps: i hate negative replies ,been in computing years, and most times people complain not working blablabla, usually they havn’t a clue of what they doing.
common guys. cant do it give it to the pros.:)
Hey guys i use ophcrack for win 7 32 bit but somehow at the half of the reading the disc(black window lots of letters) it stucks at a point say all ok Search something… can u help? this happens when i leave it to do the work automatically…however if i do it manual it’s hard for me ( 15y.old) any help???
I bought a vista special table from them, how do I install it since I’ve already burned livecd to my DVd-r. Cause it says that the table is 7gb and my DVD is only 4.7 gig. Do I need a dl dvd or what?
Will not work on Win7 pro 64bit – HP/Compaq 8200 Elite – boot fine, i can select graphic, etc text mode.
The Screen scrolls linux… then black screen and NOTHING.
Tried graphic mode, and text mode, same thing.
.. Vista/Win7 version worked fine on a customers Sony Vaio W7HP for a 9-char alpha-numeric password
for all you folks having problems getting it to boot from CD ROM – do this:
as the computer is rebooting – press F11 which forces it to give you a list of boot sources.
this will take a bit as it goes through regular BIOS checks etc. but no longer than normal ( just seems like it)
then you will get a list such as
Hard Drive
CD ROM
USB
Network
‘etc’
use the arrow key and move cursor to CD ROM selection and hit enter. it will then start booting from CD
As to what program/boot works best -there’s no way to predict in general. just keep trying until you win.
thanks to everyone posting on this, it really does help others who are in need.