Lenovo laptop M4400S set the password forgot how to solve it

If you have forgotten your system login password, you can use the "command line security mode" to log in.

For example, restore the "lrc" password of a local user

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 "lrc", and clicks "administrator" to enter the command line mode.

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

If the user name is lrc1 and the password is 123456), type "net user lrc1 123456 add", and then you can run the "net localgroup administrators lrc1 add" command to promote the user to the administrators group and give it super privileges.

Dear users, hello!

Your problem is special, you can consult Lenovo background engineer, Lenovo has a special engineer to solve the problem for you, WeChat service consultation. If you have any questions, please consult Lenovo 24 hours** service.

Is it a user login password?

You can use a PE disk to clear the password.

By the way, the notebook sets its own password, and the most common reason for the error is: the keypad is automatically turned on, resulting in the wrong password, when entering the password, pay attention to the upper and lower case letters and the keypad is turned on, and try again.

Lenovo laptop G400

I forgot how to open the screen password:

You can use a PE tool to crack the boot code.

Specific steps: 1. Use the big sweet potato U disk startup disk making tool to make a big sweet potato U disk startup disk, and then enter PE to operate, the specific operation steps are:

Then press the F12 boot hotkey to enter the BIOS settings USB flash drive boot.

2. After entering the main menu interface of Big Sweet Potato, select Big Sweet Potato Win8x86pe Maintenance Version (New Machine) and press Enter to enter.

3. In the win8pe system, bring up the start menu, password management file, and select ntpwedit (crack the system password).

4. After opening the NTPWEDIT software, open the SAM file path.

5. Then all users in the system will appear in the user list.

6. Click on the account you forgot your password and select Change Password.

7. Finally, after entering a new password in the chain, after confirming that it is correct, save and modify it.

Dear users, hello!

You can choose to go to the nearest service station and ask a staff member to help you crack the code.

Or press the F8 key at startup, boot in safe mode, and log in with admininstraor, because when installing the operating system, the user's password is generally empty.

Then delete the password of the forgotten password user name directly in the management user group, or restore the password of the local user "** as an example, steps: 1. Restart the computer, press the F8 key immediately after the startup screen appears, and select "Security mode to be commanded".

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

3. Type the password, "net user***123456 add", and force the password of "**user" to "123456". If you want to add a new user here (e.g. username is abcdef and password is 123456), type "net user***123456 add", and you can use "net localgroup admininstraors abcdef add"."The command promotes the user to the user of the system administration group "admininstraor" and gives it super privileges.

4. Restart the computer and run it in normal mode.

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Lenovo G400S notebook boot password forgot the solution:

First, let's talk about the solution for non-administrators. There is only one user in the computer where the system is installed, that is, the familiar administrator user, but many users may not use it, but create a user by themselves, but compared to the administrator user, the solution of this user is much simpler, of course, the premise is that the administrator user does not set a password, or you remember the password set.

When you come to the login screen, press Ctrl+Alt+Delete at the same time, a login box will be called, the default username should be the username you are using, change it to administrator, and then enter the corresponding password (if it is empty, you can leave it blank).

Then click on the "Start" menu and go to the "User Account" control screen through the control panel. Non-administrator users may find that this "User Account" interface is slightly different from the interface used by the self-created user, because it has an additional administrator user that cannot be seen in the self-created user, and if more than one user account is created, it will be displayed on this interface, which is the special feature of the administrator user.

Find the user who forgot the password and click on it, at this point you can see the two options we need, one is to change the password, and the other is to delete the password.

You can also use the long-lost command-line method. Open the Start menu, click Run to enter cmd, then enter the net user username password, you can also change the password of the username you forgot your password. Both of the above operations are carried out in the administrator user, and neither method is feasible without this environment.

It's a simple solution, so let's take a look at the troublesome situation. The most troublesome situation is that the administrator user forgets the boot password, so the above method cannot be used, of course, it is not without a solution. Many installation software now has integrated a tool to clear the boot password, which can help us clear the system password.

Of course, when it comes to forgetting the boot password, what must not be forgotten is to reinstall the system, I believe this is also the most answer that many users get after encountering this situation. While this approach does solve this problem, it is not recommended.

Use the ghost system to install the CD, or the USB flash drive to launch the tool.

Clear or bypass Windows password login.

Dear Lenovo users, hello!

Hello, it is recommended that you try some more commonly used password settings, and then check whether the upper and lower case lock and numeric keypad function on the keyboard are turned on when entering the password, if you really can't recall the correct password, you can use the Lenovo one-click recovery function to back up the data in the hard disk, and perform a one-click recovery operation to reinstall the operating system. If you can't solve the problem yourself, you can send it to the service station and provide you with the specific address and contact of the service center**Please refer to the following link: (It is recommended that you contact the service center before going).

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Dear Lenovo users, hello!

Is your computer's operating system win8?

Windows login passwords cannot be recovered. If you still can't remember your password after recalling, we recommend the following:

1. Adjust the "letter case keys" and "numeric keypad keys" on the keyboard to make the input status consistent with the state required by the password;

2. If the Windows 8 operating system is pre-installed at random, the computer system disk can be restored to the factory state through Lenovo one-click recovery;

3. Install Windows 8 system;

Note: Please save your personal important information on your hard drive before one-click recovery or system installation.

4. Send it to a nearby service station for maintenance.

Go to another computer to get a USB flash drive boot disk, you can bypass the password to log in.

You can use the U disk to start PE cracking to delete the password or skip the password to log in.

Make an external data, even if the hard disk password, is only connected to the computer, and there is no connection to the files in the other disks.

You can let the maintenance station make the system for you.

Or use the hard disk as an external hard disk and copy the data in it.

I'm not afraid of trouble to reinstall the system, generally I remove the back cover for someone else, remove the button battery inside, and turn it on after ten minutes of rest.

Chinese cabbage to make a U disk system to go in and clear the password.