How to Crack Windows Passwords With Ophcrack and Rainbow Tables

Download ArticleDownload Article

Cracking a Windows Password with Ophcrack with the use of rainbow tables, relatively easy if you take the right steps and if the computer can boot from a disc. The free, open source Ophcrack Live CD is a Windows account password cracking tool designed to help you recover lost Windows passwords. 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. The Ophcrack Project has recently released a Linux Live-CD based on SLAX that can be used to retrieve and crack passwords from Windows machines with little or no effort.

  1. How.com.vn English: Step 1 Go to The...
    Go to The Ophcrack Website and download the ophcrack Livecd iso that is offered there (~455 MB).
  2. How.com.vn English: Step 2 Burn the iso file to CD using an image burning software.
    Advertisement
  3. How.com.vn English: Step 3 Put the CD in the disc drive of the computer you want to crack the passwords of.
  4. How.com.vn English: Step 4 Boot from disc.
    This shouldn't be to hard. Depending on computer, enter the bios settings and change the boot settings to boot from a disc drive on first boot device.
  5. How.com.vn English: Step 5 Exit BIOS setting.
  6. How.com.vn English: Step 6 Ophcrack will initiate by itself.
  7. How.com.vn English: Step 7 The logo screen should appear, at which you should hit enter.
    Text should scroll down the screen, and eventually you will have a graphical interface pop up, with the one and only window (Ophcrack).
  8. How.com.vn English: Step 8 Once the system is done, select the user account you wish to recover the password for, and click launch.
  9. How.com.vn English: Step 9 Depending on the...
    Depending on the speed of your system, the cracker will go to work, and if it can determine and decrypt your password, it will eventually display it in the "Not Password" column
  10. Advertisement

Community Q&A

Search
Add New Question
  • Question
    What types of computers does this work for?
    How.com.vn English: Community Answer
    Community Answer
    It works for any Windows computer. Ophcrack is very flexible. Note that "Vista table" means Vista and above.
Ask a Question
200 characters left
Include your email address to get a message when this question is answered.
Submit
      Advertisement

      Tips

      • Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.
      Submit a Tip
      All tip submissions are carefully reviewed before being published
      Thanks for submitting a tip for review!
      Advertisement

      About This Article

      How.com.vn is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 26 people, some anonymous, worked to edit and improve it over time. This article has been viewed 136,005 times.
      How helpful is this?
      Co-authors: 26
      Updated: April 2, 2020
      Views: 136,005
      Categories: Windows Passwords
      Thanks to all authors for creating a page that has been read 136,005 times.

      Is this article up to date?

      ⚠️ Disclaimer:

      Content from Wiki How English language website. Text is available under the Creative Commons Attribution-Share Alike License; additional terms may apply.
      Wiki How does not encourage the violation of any laws, and cannot be responsible for any violations of such laws, should you link to this domain, or use, reproduce, or republish the information contained herein.

      Notices:
      • - A few of these subjects are frequently censored by educational, governmental, corporate, parental and other filtering schemes.
      • - Some articles may contain names, images, artworks or descriptions of events that some cultures restrict access to
      • - Please note: Wiki How does not give you opinion about the law, or advice about medical. If you need specific advice (for example, medical, legal, financial or risk management), please seek a professional who is licensed or knowledgeable in that area.
      • - Readers should not judge the importance of topics based on their coverage on Wiki How, nor think a topic is important just because it is the subject of a Wiki article.

      Advertisement