Without installing anything on the PC, LiveCD allows users to not only recover and retrieve their lost or forgotten password, but also to hack and crack the passwords on any Windows machines, although it can be used for testing the strength of passwords.Ophcrack 2.3 comes with a GTK+ Graphical User Interface and runs on Windows, Mac OS X on Intel CPU and Linux. The CD is bootable and will automatically load linux, search for Windows partitions and then extract Windows' SAM to start ophcrack to crack the password hashes it finds. The Ophcrack Live CD contains a live linux distribution, ophcrack and an alphanumeric table set (SSTIC04-10k). Thus, Ophcrack features ability to reveal, recover and crack most of the alphanumeric passwords which contains up to 14 characters almost immediately, usually within just a few seconds, and at most a few minutes.Ophcrack 2 comes in the form of Windows installer (currently Ophcrack 2.3.3) and Ophcrack LiveCD (currently Ophcrack LiveCD 1.1.3) which automates the retrieval, decryption, and cracking of passwords from a Windows system. Basically, Ophcrack works by using rainbow tables which contains precomputed hashes of possible alphanumeric and character table sets, so that the program can iteratively compare the windows hashes to precomputed bits and compute the hash and its value more quickly in a more effective way than brute-force guessing. Ophcrack hacks and cracks the Windows password LM hashes based on a time-memory trade-off using rainbow tables. For security reason, now you can recover and get back the Windows user or admin password from local computer which you've forgot the password itself with Ophcrack 2, with password retrieval process takes place locally.is a open source Windows password cracker or password auditing utility which is an improvement over original Ophcrack 1.0 developed at EPFL. However, you will need to let the third party process the password recovery, which effectively reveal the password to them. Some service such as Login Recovery helps to retrieve and recover the Windows user name and password for Windows XP, 2000, NT and Longhorn Server.
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