Retrieve any alphanumeric windows logon password quickly

Sometimes even administrators forget the passwords to their account or sometimes you have "service accounts' configured which use a certain password. If you are deploying a new machine or a server and need this password but you don't have it, you are still not dead in the water. In this article we would show how you can use the free utility called Ophcrack to retrieve Windows passwords. It can crack up to 14 character alphanumeric passwords under 10 minutes. It is a great tool for computer security professionals who would like to audit security settings or perform penetration testing

There are various other utilities available on the internet, what's neat about this utility is that it is blazing fast. It does not just use brute force or dictionary type attacks, but it makes use of Rainbow Tables to accomplish its task. There is no installation of any sort required, you just boot of a CD and run the utility in a full GUI mode.

Some of the other features of this utility as stated on its website are:

* Runs on Windows, Linux/Unix, Mac OS X, ...
* Cracks LM and NTLM hashes.
* Free tables available for Windows XP and Vista.
* Brute-force module for simple passwords.
* Audit mode and CSV export.
* Real-time graphs to analyze the passwords.
* LiveCD available to simplify the cracking.
* Loads hashes from encrypted SAM recovered from a Windows partition, Vista included.
* Free and open source software (GPL).

Here is a step by step procedure on how to use this utility:

- Download Ophcrack liveCD from http://ophcrack.sourceforge.net/ its about 452 MB iso file
- Burn the iso image to a CD, please note that you need to burn the iso image to create a bootable cd, do not burn the iso image as a data cd. We have a step by step tutorial available on how to do this at http://indiawebsearch.com/content/use-cd-burner-xp-for-all-your-windows-cd-burning-needs

- Now you need to change or check your computer's BIOS boot order settings, such that the first boot device is your CD Rom, so your machine can boot directly into Ophcrack

 

- Let the machine boot with the CD

 

- Choose Ophcrack Graphic mode (which is the default setting)

 

- The program would automatically identify the local usernames on the machine and start to work on obtaining their passwords. It would show you the usernames, the progress bar and the time elapsed

 

- Once found, it would display the username, password and time elapsed

 

- Hit the X on the top right hand window and press a key when asked to exit the program

 

- Finally press Y to shutdown the CD and reboot your machine into Windows

 

Doesn't work on Windows 7 :(

Hi, I have tried your instruction and burned the ophtrack for vista, since there are only two OS, XP and Vista, so i just choose vista eventhough my OS is Windows 7. I have run the program but it DOES NOT detect the password or the user or anything.... do you have a program like this for Windows 7? Pls give a link where I can download and some instruction because i really need to know this. Thank you very much i really appreciated your talent and help.

Reset Windows Login Password

There are many ways available,If you have lost windows password,you can pick up a good one. 1. Reseting Windows password with another admin account. Log on to the administrator account that you will use to reset the forgotten password.Open Local Users and Groups by clicking the Start button Picture of the Start button, typing lusrmgr.msc into the Search box, and then pressing ENTER. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.Double-click Local Users and Groups, and then click Users. Right-click the account that you need to reset the password for, and then click Set Password. Type and confirm the new password. 2.Login to a computer that can link to Internet. Download a windows password Key 8.0 from http://www.lostwindowspassword.com and install it on that PC. Note that: there is a .ISO file. Burn the .ISO file to a CD or a USB flash drive. Insert the newly created CD/USB drive to the locked computer. Reboot the locked computer and press'F2'or'Delete'to enter your BIOS setup and then followed the process of instructions. Just a few steps, the old password was removed.

Don't spam please

Please don't spam. Read the previous comments.

3rd password recovery utility

Forgot windows password ? Do not be so anxious. I know a tool which can help reset windows vista password, need not to reinstall the windows OS, its safely and easily.By using "Windows Password Recovery 6.0 " ,could be helpful. For further information just visit http://www.recoverlostpassword.com

Reset /crack/hack/recovery windows password/admin password/ vist

1. Log onto a computer that can link to the Internet. Download Windows Password Unlocker 4.0 from http://www.passwordunlocker.com and decompress it on that PC. Note that: there is a .ISO file. Burn the .ISO file to a CD. 2.Get out the newly created CD and insert it to the locked computer. 3.Re-boot the locked computer and then follow the process of instructions. Just after a few steps, the old password will be removed. 4.Set new password: Step 1: Open the "Control Panel Step 2: Click the "User Account Step 3: Select the account you wanna set a new password. Step 4: Click "Changing Account " and "Set Up Password", then fill out the form as listed. Click "Create Password".

Didn't work

ophcrack did not retrieve my alpha numeric password on windows 7, only works with passwords that are alpha only!!!!

Wonder which version did you

Wonder which version did you download, I have used it several times and it always works...

Its not the same thing!

There is a big difference between "clearing" or "resetting" the admin password and "retrieving" it, Ophcrak has both abilities, depending on the complexity and length of the password it takes a proportionate time to "retrieve" it. Resetting it probably takes less than 2 minutes

How to Reset / Recover Forgotten Windows password

There is a way to reset windows password without erasing anything. Follow the instructions: 1.Free download the windows password reset 6.0 iso file : 2.Burn it to a disk to create the boot disk, that simple. 3.Configure your pc or laptop to boot in the cd drive, 4.Insert the CD, reboot from CD drive, and then just follow the process of instruction. A few steps later, admin password would be cleared Took about 5 minutes for the whole process.

Big Difference

There is a big difference between "clearing" or "resetting" the admin password and "retrieving" it, Ophcrak has both abilities, depending on the complexity and length of the password it takes a proportionate time to "retrieve" it. Resetting it probably takes less than 2 minutes

Ophcrack

You state that you need an ISO for this program and that it is 452mb. There is a version with a GUI that can be operated within Windows, however with all of the libraries needed for the program to operate correctly you will run into a file that is 1.06gb...

LiveCD version is only 452MB

The iso image version like I state in the article (LiveCD version) that does not need any installation is only 452 MB and yes, it has a full GUI interface. The Windows installable version is good only if you can log onto the machine, the LiveCD version works everytime, without even logging to Windows. There are a number of variety of Rainbow tables available, paid and free, you can go all the way to 16 Gigabyte for a download