Ultra-simple way to crack the system login password

Computer shop news If you are a very easy to forget person, then don't forget to create a password to recover the account password in Windows XP at the same time you set the password. The boot disk, which allows you to avoid the hassle of formatting the hard disk. Find the “User Account” item from the “Control Panel” and select your account to enter the control interface as shown in the figure. We can see that there is an item in the left task list “Block a Forgotten Password” ;, click to open “forgot password wizard”, the wizard will prompt to insert a formatted blank disk, the operation will let you enter the password used by the account, you can quickly create a password Reset the disk. Later, when we have forgotten the account password, log in to Windows XP without using the “Welcome Screen” login method, press “Ctrl + Alt + Del”, & "Windows Security" ; window, click on the option "Change Password" button, the Change Password window appears. In this window, backup the current user's password, click the “Backup” button in the lower left corner, activate “Forgot Password Wizard”, and follow the prompts to create a password reset disk. If you enter the wrong password in the Windows XP login window, the “Login Failure” window will pop up. If you can't remember what your password is, click the “Reset” button to activate the password. Set up a wizard to reset the password with the password you just created, you can use this password to reset the password and start the system. Reset your password and log in to Windows XP. The creation of “password reset disk” is dangerous because anyone can use this “password reset disk” to log in to Windows XP and enter the user account in the name of the user. Operate everything that a real user can do, so you must keep the "password reset disk" in the appropriate place to prevent loss or loss of confidentiality.

Method 1——Using “administrator” (This method applies to the administrator username is not "administrator" situation) We know that in the process of installing Windows XP, the first is " administrator" Log in, and then ask to create a new account to log in with Windows XP when entering this new account, and only the created user account will appear in the Windows XP login interface, and will not appear “administrator”, but actually The  quo;administrator” account still exists and the password is empty. After we understand this, if you forget the login password, on the login screen, hold down the Ctrl+Alt key and then press the Del key twice to display the classic login screen. At this time, type in the username. “administrator”, the password is empty to enter, and then modify the password of “zhangbp”

Method 2—— Delete SAM file (note that this method is only applicable to WIN2000) Windows NT/2000/XP uses security account manager (SAM) for security management of user accounts. The security account manager manages the account by using the security identifier. The security ID is created at the same time when the account is created. Once the account is deleted, the security ID is also deleted. The security identity is unique, and even with the same username, the security identity obtained each time it is created is completely different. Therefore, once an account is rebuilt by a username, it will be given a different security ID and will not retain the original permissions. The specific performance of the security account manager is the %SystemRoot%system32configsam file. The SAM file is the user account database of Windows NT/2000/XP. All users' login names and passwords are saved in this file.

Knowing this, our solution has also been created: delete the SAM file, start the system, it will rebuild a clean and innocent SAM, which naturally has no password. However, such a simple method is not applicable in XP, Microsoft may use this as a BUG, ​​doing restrictions … … So now under XP system, even if you delete the SAM, you can not delete the password, but will make the system boot Initialization error, so you can enter the infinite loop and can't enter the system!!

Method 3—— Find the password from the SAM file (premise …… will use the DOS basic command) Before the system starts, insert and start Disk, enter: C:WINNTSystem3Config Use the COPY command to copy the SAM file to a floppy disk. Get another machine to read. The tool needed here is LC4, run LC4, open and create a new task, and then click “IMPORT→Import from SAM file” to open the SAM file to be cracked. At this time, LC4 will automatically analyze this file and display the file. Username in the middle; then click “Session→Begin Audit”, you can start cracking the password. If the password is not very complicated, the result will be obtained in a short time. However, if the password is more complicated, it will take a long time, then we need to use the following method.

Method 4—— Overwrite with other SAM files (provided you can get the SAM file of another computer and its password …… personally think it is the most feasible way) 1—— Said, the SAM file holds the login name and password, then we just replace the SAM file is to replace the login name and password. However, the replacement SAM file should be the same as your system (see FAT32 or NTFS, you can confirm it yourself). It is best that the system of "Place of Origin" has no password, the security settings have not been moved (actually a large part of the PC is like this), of course, the more insurance way is to put XP under [Win NTSystem 32Config] All files are overwritten in the [C:Win NTSystem 32Config] directory (assuming your XP is installed in the default partition C:), 2—— if you don't get help from others (I mean "just in case"), You can install an XP system on other partitions. The hard disk partition format should be the same as the original one, and please be careful not to install the same partition with the original XP! Before starting, be sure to back up the boot area MBR beforehand. There are many ways to use MBR, using tool software, such as anti-virus software KV3000. After installing it, log in with Administrator. Now you have absolute write permission to the original XP. You can test the original SAM and get the original password with 10PHTCRACK. You can also overwrite all files under the newly installed XP Win NTSystem 32Config into the C:Win NTSystem 32Config directory (install the original XP installed here), and then use the KV3000 to restore the previously grievous main boot area MBR, now you can Log in to XP as an Administrator. [No. 2 program I feel trouble, or No. 1: Call someone to help better … …] [In addition, it is said that the SAM in the C:windows epair directory is the original version, you can use it to cover this under system32 SAM, so you can delete your current password and restore it to the password you just started when you installed the system. If this password is empty, it is not …… 】Method 5—— Use Win 2000 installation CD to boot the repair system (premise …… Obviously? You have to have a Win 2000 installation CD) Install with Windows 2000 Start the computer on the CD, select Repair Windows 2000 in the Wndows2000 installation selection interface (press R); then select Use Faulty Console Repair (press C), the system will scan the existing Window2000/XP version. There is usually only one operating system, so only one login option is listed (l:C:Windows). Press l from the keyboard, then press Enter. At this time, Window XP does not require the administrator password to be entered. Instead, it logs directly into the Recovery Console mode (if you are using the Windows XP installation CD, it is required. Enter the administrator password. The administrator here refers to the system's built-in Administrators account.) Windows-familiar friends know that the Recovery Console can perform any system-level operations, such as copying, moving, and deleting files. Start, stop services, and even destructive operations such as formatting, repartitioning, and more. Test using CD: Windows 2000 Proessional Simplified Chinese version with integrated SP3. Testing by the system: Windows XP Proessional, playing SPI patch Windows XP (FAT32 and NTFS file systems are the same )