When I open my computer, I ask for a login name and password, which seems to have been set before, a

I do not use it"Welcome screen"After logging in to Windows XP in the case of login mode, press it"ctrl + alt + del"Key combination, appears"Windows Security"window, click Options"Change your password"button, the Change Password window appears (Figure 1). In this window, back up the current user's password and click on the bottom left corner"Backups"button, activate"Forgot Password Wizard"and follow the prompts to create a password reset disk.

If you enter the wrong password in the login window of Windows XP, it will pop up"Login failed"window (Figure 2) if you really can't remember what your password is, you can click on it"Reset"button to launch the password reset wizard, reset the password through the password reset disk you just created, and log in to Windows XP

Find the password from the SAM file.

The tools needed here are lc4, run lc4, open and create a new task, and click on it in turn"import→import from sam file", open the SAM file to be cracked, LC4 will automatically analyze the file and display the username in the file; Click after that"session→begin audit"to start cracking passwords. If the password is not very complex, the results will be available in a very short time.

However, if the password is more complicated, it will take a long time, and the premise is that you have two systems and ensure that the other system can start normally.

Use Windows Key. The software is included in the system administrator password recovery and generates 3 files after running: And, the 3 files are only 50kb in total, short and concise.

Put these 3 files into any floppy disk, then use the XP installation disc to boot the computer, and press the F6 key during the boot process to have the system install third-party drivers. At this time, it is the best time for us to cut in, and the floppy disk will automatically jump to the windowskey interface. It will forcibly replace the administrator's password with"12345", so why worry about big things?

Remove the BIOS battery.

The discharge password is cleared.

With the username administrator there is no password.

And then there's the ability to take down the electronic battery on the main disk for a while.

In this way, you can keep asking for passwords to enter the system, so that you can set up passwords later.

1.The boot code can take the CMOS battery off.

The password of the system is more complex. In this case, let's redo the system with ghostxp.

Yes Take the motherboard's battery off

The boot password refers to the password that pops up after you turn on the computer and boots up the POST. At this time, you will only need to enter the correct password before the system will be activated. When this kind of password appears, you can't even enter the BIOS settings of the computer, so the security is relatively good (it is recommended that laptops do not set this kind of password.)

Because once you forget the password, and then lose the corresponding decryption disk, you will have to go to the notebook manufacturer's repair shop to burn money). Solution: Open the case, take out the CMOS lithium battery on the motherboard, and after a while (5-10 minutes), put it back in, and the password will disappear automatically.

Principle: Because the boot password is set through the BIOS, it will be saved in the CMOS on the motherboard, and the content of this memory will disappear after a long time of power failure, so the password will also disappear.

There are Ghost XP discs on the market, put them in the CD drive, boot from the CD, and one of them is called Clear Win XP 2K password.

1) If you forget your password.

Method: Restart the computer, when booting to the system login interface, press and hold the CTRL+ALT key at the same time, and then click the del key twice, a new login interface will appear, enter the "administrator" password at the user name is empty, press enter to log in, after logging in, open the control panel and select User Account Change Account Click on the original "Account Name" Change my password Enter a new password, enter a new password again, and then click the "Change Password" button (do not set the password to empty).

2) If you have forgotten your computer administrator password, please try the following method.

Method: Use.

PE discs. Boot the system (some ghost system disks with a toolbox also have this function), and on the screen where the options menu appears, press the arrow keys to move to.

Clear the administrator password", and then press the enter key to quickly clear the "administrator account" password;

Take out the system CD and restart it to clear the password, administrator, and log in to the system.

If it doesn't work, reinstall the operating system.

3) If you can enter the system to decipher the password using the following software.

proactive

system

password

recovery

Chinese version。 The software that deciphers the code, and the password can also be queried, and it can be operated in the case of entering the system) proactive

system

password

recovery

English version, software to decipher passwords, password can also be queried, and operation is carried out when entering the system).

It's Windows

XP operating system, accidentally forgot the password of the system login user"**, you can net command to solve the problem:

windows

"net" is available in XP

user" command, which can add and modify user account information, and its syntax format is as follows:

netuser

username

password

options]]

domain]

netuser

username

password

addoptions]

domain]

netuser

username

delete]

domain]]

Now let's take the recovery of the local user's password as an example to illustrate the steps to solve the problem of forgetting the login password

1. Restart the computer, press the F8 key immediately after the boot screen appears, and select "Safe Mode with Command Line".

2. At the end of the running process, the system lists the selection menu of the system superuser "administrator" and the local user "**", and clicks "administrator" to enter the command line mode.

3. Type the command: "netuser."

add" to force the password of the user to be changed to "123456". If you want to add a new user here (e.g., username abcdef, password 123456), type "net."

userabcdef

add", after adding, you can use "net

localgroup

administrators

abcdef

add" command promotes the user to the user of the system administration group administrators and gives it super privileges.

4. Restart the computer, select Normal mode to run, and you can log in to the ** user with the changed password "123456".

I found it on the Internet, and I tried it.

It's OK.

If you haven't forgotten the password you set, you can clear the password by going to PE.

You can clear the boot code by entering PE:

1.After making the USB flash drive boot disk, restart the computer, set the USB flash drive as the first boot order through the BIOS, reboot the computer, and select the USB flash drive to boot.

2.Enter the PE startup function interface, select in the menu: run the windows login password cracking menu, press enter;

3.Then select: or to clear or modify the password.

Username: administrator (case-sensitive) Password: empty.

It is estimated that you may install the netbios protocol by mistake, after entering the system with the above username and password, right-click on the network neighbor--properties--right-click local connection--attributes, and uninstall the netbios protocol inside--OK--do not restart. In the control panel, the user login method is changed to quick login, and you can restart it.

Resolution.

1. Use the net command (assuming that the username of the user who forgot the password is luoyong).

In Windows XP, the "net user" command is provided, which can add and modify user account information, and its syntax format is as follows:

net user [username [password | options]] /domain]

net user [username /add [options] [/domain]

net user [username [/delete] [/domain]]

1. Restart the computer, press the F8 key immediately after the boot screen appears, and select "Safe Mode with Command Line".

2. At the end of the running process, the system lists the selection menus of the system superuser "administrator" and the local user "luoyong", and clicks "administrator" to enter the command line mode.

3. Type the command: "net user luoyong 123456 add" to force the password of the "luoyong" user to be changed to "123456". If you want to add a new user here (e.g

If the user name is abcdef and the password is 123456), type "net user abcdef 123456 add", and then you can run the "net localgroup administrators abcdef add" command to promote the user to the administrators group and give the user super permissions.

4. Restart the computer, select Normal Mode to run, and you can log in to the "Luoyong" user with the changed password "123456".

Resolution. 2. Use "administrator".

Know that in the process of installing Windows XP, first log in with "Administrator" by default, and then you will be asked to create a new account, so that you can log in with this new account when you enter Windows XP, and only the created user account will appear in the login interface of Windows XP, and "Administrator" will not appear, but in fact, the "Administrator" account still exists, And the password is empty.

The method to enter the username and password when canceling the computer boot is as follows: 1. Open the start menu, enter the word "run", and press the enter key. 2. Enter Control UserPasswords2 and click OK.

3. Remove the tick in front of "To use this machine, the user must enter the user name and password", and click OK.

Use U Master to make a PE boot disk, and then enter the PE to delete the password.

It should be that someone touched your computer and set a password for you. Try the following methods: Enter the username administrator The password is empty Try it Press F8 when you boot it to see if you can enter the security mode, if you can, go to the personal account to clear the password There are software tools to solve it.

1. Software name: Windows key

How to use: After running, 3 files will be generated: and.

Copy them to a floppy disk and make a Windows Key disk. Then make.

Boot the computer with the Windows XP installation CD, and press the F6 key during the boot process to let the system install the third-party driver.

Procedure. At this time, putting the Windows Key floppy disk will automatically jump to the Windows Key interface, and it will.

Forcibly change the administrator's password to "12345".

2 Software Name: Windows XP 2000 NT Key

Application: Use it to make a drive floppy disk; Then boot the computer with the installation disc to start the process.

Press "S" to insert the floppy disk, and the password of the administrator account will be changed.

for 12345.