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How to Crack a Window's Password in 5 Minutes

February 11, 2009 at 06:02:15 AM, by Blair Mathis Rating: 4 out of 5

There are a number of reasons for needing to crack a Windows password: simply forgetting what the password is, working on a used computer, etc. No matter your reason for needing to, finding a Windows password is generally simple, and can be done in a very short period of time.

Items Needed:

- Blank CD

- Ophcrack

To find the Window's password, you'll need a program called Ophcrack. It is completely free, and works very well. Ophcrack is not really a program--it is a LiveCD that is burned to a blank CD (or a USB flash drive if using on a newer computer) and runs rainbow tables on a Slackware base.

Installing

Navigate to the official Ophcrack website at http://ophcrack.sourceforge.net/ -- download the Live CD ISO and save it to your computer. Once it is downloaded, you will need to burn the disc image to a blank CD. The software used will vary--if your system doesn't have burning software already installed, you can download a trial of Nero, or something free like ImgBurn. Burn it at a low speed.

Using

To use the software, insert the CD into the optical drive on the computer you wish to gain access to and hold the power button until it shuts down. Turn it back on and when the compute logo appears, press the button for the system to enter BIOS. Change the boot sequence to CD first, then Save and Exit BIOS.



The Live CD will start and the rainbow tables will automatically start working at the password. For the average users password, it will likely take about five seconds to crack. For a longer alphanumeric password, it could take a few minutes, but that is the exception, not the rule.

Once it finds the password, write it down somewhere, then remove the CD and restart the system. Enter the password at login and then change/remove it to whatever you would like

.

Note: Common sense says that this should only be used on computers you are authorized to gain access to. If you use this to find the password to a computer that is not your, it is illegal. This article is for informational purposes only.

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Comments

  1. vipin sharma at 10:29, January 22, 2010

    hey can anyone temme how to hack into other's system without knowing any UID .....plz reply me at preeniks@gmail.com

  2. question at 18:55, January 15, 2010

    i have a question, can you use a Usb stick instead of a CD

  3. Yuki at 03:15, January 07, 2010

    does this still works?

  4. fly at 00:22, January 06, 2010

    A few days ago, I had met the headache things that I had forgotten Windows login password. The login screen rejected my passwords. I was frustrated because there was very important data on my disk and I couldn’t reinstall the OS. …………. However, I fortunately got to know Advanced Windows Password Recovery 3.0(http://www.recoverwindowspassword.com), which is a professional windows password recovery tool for us to reset windows password instantly yet no data loss.

  5. Aaron at 20:51, December 30, 2009

    Look at this tutorial to reset or change user's password for free. http://windowspassword.blog.com/2009/10/30/lost-windows-password/

  6. julie at 12:44, December 29, 2009

    im administrater on my computer.ive limited the other user accounts so they cant install or uninstall any programs,but now ive forgotten my login password so i cant get in 2 administater settings,which means i cant install my new internet security disc.any1 got any free ideas?.

  7. John at 19:12, December 13, 2009

    Well if you're only trying to crack a Windows login password...there is a much easier way... ...ever try going into Safe Mode then making a new administrator account? --- Vouch for this. Much quicker and easier if they haven't secured against this.

  8. Ranjeet at 06:16, December 12, 2009

    hi would like to try it ...............first then i will give u the comment

  9. Ranjeet at 06:16, December 12, 2009

    hi would like to try it ...............first then i will give u the comment

  10. zee at 17:40, November 25, 2009

    hey help me i cannot loggin into my computer. Am sure is password problem can you help me

  11. sandi at 07:13, November 10, 2009

    what wuld b a problem does not work, i am sure i did not change it nor any1. i used it since aug last year. dell failed 2 help.

  12. roberto at 20:14, November 09, 2009

    quiero ver como se obtienen contraseñas de correo

  13. roberto at 20:14, November 09, 2009

    quiero ver como se obtienen contraseñas de correo

  14. zain ali at 14:48, November 05, 2009

    plz send me notes abt password cracking techniques...i m very thankful to u,

  15. bombermanneo at 04:04, October 08, 2009

    As far as I know, Windows Password Recovery Tool 3.0 is safe and easy to use. An .ISO file included in windows passwords Recovery. So, you just need to free download windows passwords Recovery, which is available at many download sites

  16. Emmanuel DEMEY at 11:29, August 16, 2009

    A good How-To! thanks --------------------------- http://emmanueldemey.fr

  17. RG at 11:59, July 21, 2009

    Here is another tool for MS Windows OS http://home.eunet.no/~pnordahl/ntpasswd/

  18. linky1124 at 03:48, July 09, 2009

    I prefer http://www.resetwindowspassword.com/ ophcrack didn't work sometimes.

  19. jiujiu at 03:50, June 18, 2009

    Long time ago , I was confronted with the password problem. Finally , my friend Jane introduce the Windows password Reset.It helps me access windows. It's great! http://www.resetwindowspassword.com

  20. wade at 16:48, May 27, 2009

    i have a eee pc and i have forgot the password how can i hack in to it to change my pass word

  21. Gebrish Ab at 13:17, April 14, 2009

    I have forgot my pc password and Learning how to crack and hack any password is intersting to me! So could you help me by sending softwares and related materials. Thank you very much indeed in advance!

  22. MAX at 07:14, April 14, 2009

    Plz help me out how to hack in anothers pc without knowing that user. Reply on:max_mascrenhas@yahoomail.com

  23. nemo at 16:14, April 04, 2009

    "d. brown, works really good but u got a program that intitiates the code for the 4 ounces of c4 in my harddrive",, lol

  24. nemo at 16:14, April 04, 2009

    "d. brown, works really good but u got a program that intitiates the code for the 4 ounces of c4 in my harddrive",, lol

  25. K0RrUpT10N at 09:06, March 18, 2009

    LCP5 allows you to crack ANY password up to 14 Characters, including special letters (!"£?@~). Dump the SAM, then just let it run away. You can even alter the character set you want to use...

  26. K0RrUpT10N at 09:06, March 18, 2009

    LCP5 allows you to crack ANY password up to 14 Characters, including special letters (!"£?@~). Dump the SAM, then just let it run away. You can even alter the character set you want to use...

  27. nox at 23:06, March 10, 2009

    can ophcrack can use in flash drive??? it can be work or not? or need to be burn to CD?

  28. nox at 23:06, March 10, 2009

    can ophcrack can use in flash drive??? it can be work or not? or need to be burn to CD?

  29. T at 13:25, March 05, 2009

    Well if you're only trying to crack a Windows login password...there is a much easier way... ...ever try going into Safe Mode then making a new administrator account?

  30. Solomon at 12:53, February 26, 2009

    May you send me notes of how to crack a password.....

  31. Turbo at 01:56, February 23, 2009

    scary...

  32. Skeptical at 12:41, February 17, 2009

    I have some experience with this program and it doesn't work nearly as well as this article seems to suggest. It took ophcrack ~5mins to crack my 7 digit alphanumeric password and it couldn't crack my 10 digit bank password. The worst part is that it takes about 20mins of waiting if it can't crack the password. But the fact that it can be run from a usb stick makes it pretty awesome nonetheless.

  33. Kevin Cannon at 13:01, February 15, 2009

    I think the main thing to remember is that GIMP isn't trying to replace or copy Photoshop. GIMP is a high-end photography manipulation and digital art tool. It's not aimed at creating print work and it's not a graphic design tool either, so many of the decisions about GIMP are strategic. More info here: http://www.mmiworks.net/eng/publications/2007/05/lgm-gimp-project-overview.html http://gui.gimp.org/index.php/GIMP_UI_Redesign

  34. ajay at 05:02, February 15, 2009

    these methods are not useful for all these u need to have access to the computer and this is not possible in most cases if you have the access to the computers then why we need to crack the password their are some other methods also that can be used to find important information

  35. Tony Cheetham at 00:49, February 15, 2009

    2 things wrong with this. 1, if you use a special character rainbow tables are useless, and you will be sat there for a very long time. 2, this would work for *any* system, one-way encrypted passwords are only as strong as the passwords themselves.

  36. fidge at 00:01, February 15, 2009

    This program only cracks simple paswords. As soon as you type anything like *#(){} etc in your password this thing won't crack it

  37. Ed Knittel at 01:40, February 14, 2009

    "I'm not sure if this works on Vista, but I imagine it would." There appears to be 2 versions - an XP version and a Vista version http://ophcrack.sourceforge.net/download.php?type=livecd

  38. mark paterson at 17:03, February 13, 2009

    very scary!! is there ppl out there that would want to steal from me?

  39. Gorbag at 15:38, February 13, 2009

    Does this crack the BIOS password? I once had a laptop that had its BIOS password written to an unknown value when the hard drive was swapped (a really dumb Toshiba security trick). If so, this could be very useful. If not, then meh...

  40. Dan at 23:18, February 12, 2009

    I'm not sure if this works on Vista, but I imagine it would. Other password recovery tools I have used have worked equally well on XP/Vista.

  41. jch at 20:57, February 12, 2009

    I think this is only good for Windows XP. The password encryption algorithm in Vista is stronger.

  42. D. Brown at 14:21, February 12, 2009

    This is all very well and good, and it indeed could be used to start up my computer... ...But do you have a program that will find and log in the 12 digit code that initiates the detonator in the four ounces of C-4 hidden inside my computer case? ;-)

  43. bobsyeruncle at 06:12, February 12, 2009

    Just goes to prove that the number one security step for ANY computer is physical security. If a person can get to the physical box, they CAN access your data.

  44. simon at 03:39, February 12, 2009

    this works for OSX and unbuntu as well people - keep in mind all you need to change the password in OSX is an install disc and then just stick it in, and change password. now if that's "too user" friendly then I don't know what is...

  45. kristofer brozio at 00:03, February 12, 2009

    What's with the Windows Bashing? I hate fanboys....

  46. asdf at 23:43, February 11, 2009

    @Anna C Who uses windows these days? Fucking 85% of computer users, that's who. jesus christ...

  47. Anna C at 21:51, February 11, 2009

    This so seems like old news...who would even use Windows these days. Microsoft sucks.

  48. lunkan at 21:07, February 11, 2009

    Yes windows is scary some times. A tip for enhancing the strength of you passwords is to use characters specific to your language. ( öäå if you are a swede eg.). This helps somewhat, sice the standard Rainbow tables you can download often tend to only use US-charset.

  49. Andrew at 19:13, February 11, 2009

    Scary. Another reason to change to osx or ubuntu.

  50. Geno at 16:29, February 11, 2009

    Pretty nifty...

  51. Geno at 16:29, February 11, 2009

    Pretty nifty...

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