LCP is one of the most effective password auditing and recovery tools that can crack Windows password using a dictionary attack, brute force attack, or a hybrid attack. If you want to obtain a lost Windows password, you have to extract the NTLM password hashes from the SAM (Security Account Manager) file and use password hacking tool to crack them. How can I crack or hack a Windows user password? For security reasons, Windows passwords are not stored as plain text and they are encrypted by irreversible hash algorithm.