9 major tips to solve the phenomenon of forgetting passwords in Windows system

The human brain is no more than a computer. It often forgets things. Some friends often complain that they have forgotten the system login password set at that time. If you created a password at the same time as you set up the password for the first time, you can restore Windows XP. The startup password of the account password, which can save you the trouble of formatting the hard disk. If you have not done this, what should you do?

Later, when we forget the account password, After logging in to Windows XP without using the “Welcome Screen” login method, press “Ctrl + Alt + Del”, the “Windows Security” window appears, 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 really can't remember what your password is, click “Reset&rdquo ; button, start the password reset wizard, through the password reset disk just created, you can use this password to reset the password and start the system. Re-set the password and log in to Windows XP.

“The password reset disk” is created with certain dangers, because anyone can use this "password reset disk" When you log in to Windows XP, you can enter the user account in the name of the user and operate everything that the real user can operate. Therefore, 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 administrators whose username is not “administrator”)

We know that during the installation of Windows XP, the first is Log in as default by “administrator”, then ask to create a new account to log in to Windows XP with this new account, and only the created user account will appear in the Windows XP login interface, and will not appear. Administrator”, but in fact the "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 the user name, type “administrator”, the password is empty, and then modify the password of “zhangbp”.

Method 2——Delete SAM file (note that this method only works with WIN2000)

Windows NT/2000/XP uses a secure account manager for secure management of user accounts ( The security account manager (SAM) mechanism, the security account manager manages the account through the security identity, the security identity is created at the same time when the account is created, and once the account is deleted, the security identity 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, ​​made a restriction … … so now under XP system, even if you delete the SAM, you can not delete the password On the contrary, it will cause the system to start initialization error, and thus enter the infinite loop and can not enter the system!!

Method 3—— Find the password from the SAM file (premise …… will use DOS basic commands)< Br>

Before the system starts, insert the boot disk and go to: C:WINNTSystem3Config Use the COPY command to copy the SAM file to the 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.

[In fact, you can borrow another computer to use "Notepad" to write a.bat and scripts.ini, and then copy it to your computer via DOS using a floppy disk] Description:

The above script uses the FAT32 file system. If you use the NTFS file system, you can mount the hard disk from the disk mode to other computers that recognize NTFS file systems (such as Windows 2000 or Windows XP). This method can restore the password of the administrator (Administrator). Password recovery for local computer users and domain users in Windows 2000 systems is also valid.

OFFICE NT PASSWORD REGISTRY EDITOR. This software can be used to make Linux boot disk. This boot disk can access NTFS file system, so it can support Windows 2000/XP. Use one of the floppy disks to run in LINUX. The tool NTPASSWD can solve the problem and can read the registry and rewrite the account. The method of use is very simple, just follow the prompts after startup to do it step by step. Here, it is recommended that you use the quick mode, which will list the user for you to choose to modify that user password. By default, the ADMIN group user is selected, and the user who has changed the name of the ADMINISTRATOR is automatically found, which is very convenient. Previous123Next page Total 3 pages