When my computer is booted up, a login password dialog box appears, and I didn t set it

This is also the case in my family.

1) To get started, control panel, user account, change the way users log in or out, just tick the box in front of the Welcome Screen and User Quick Switch.

2) If the above methods do not work, the following methods can be used:

Click "Start Run" in Windows, type "rundll32, usersrundll" (pay attention to the case and spaces, you can also copy my command, and then press Ctrl+V in the run, and it will be copied in.) ), then enter the "User Account" operation window, select the default login user name, and unselect the item "To use this machine, the user must enter the user name and password".

My family got it the second way.

This can be set in your user account. Look.

It's also possible that it was hacked, and if it doesn't work out, then you'll have to reinstall it again. But format all disks so that the virus Trojan is gone. Normal reinstallation can only format the C drive.

No, it's a matter of the login setting.

Open the browser, Tools - Internet Options - Connections, and select Never make a dial-up connection.

If you set a password for your XP, then every time before entering the XP desktop, a user login interface will appear, asking for a password, which increases the security of the system and provides convenience for multiple people to share a computer, but if you are the only one who uses it, it is indeed a bit inconvenient to enter the password every time.

There are two ways to cancel this login step:

The first is to modify the registry, which is cumbersome and requires some knowledge of the registry.

Step 1: Run the registry, then the [hkey local machine software microsoft windows nt currentversion winlogon] branch, and double-click on the right window"defaultusername"and enter your login username. If not"defaultusername"This item can be selected by pressing the right mouse button"Create a new string value(s) for DefaultUsername"to add this item, taking care to be case-sensitive.

Step 2: Also under that branch, double-click on it in the right window"defaultpassword"and enter your password in the blank field. Suppose it is not found"defaultpassword"In this case, you can follow the steps above to create a new string value.

Step 3: Next double-click on the right window"autoadminlogon"to set the value to"1"。Suppose it is not found"autoadminlogon"For this item, you can create a new one by following the steps above.

Now close the registry and restart the computer, and you can realize the automatic login of XP.

The second method is simpler.

Click in Windows XP"Start running", enter"rundll32 ,usersrundll"(note the case and spaces), press enter and one will appear"User Accounts"If you are familiar with Windows 2000, I believe you should know how to do it, cancel it"To use the machine, the user must enter a username and password"Item selection, click"Applications"。In the dialog box that pops up, enter the username and password you want to make the computer automatically log in every time, and the next time you start up, you can realize the automatic login of XP.

Is this only the case when watching PPTV? If yes, uninstall and reinstall PPTV and see if there is anything left. If you don't watch PPTV, there is also this situation,It's that the graphics card or cable contact is not very good,You hit it when you disassemble the phone,You take it apart again,Plug it in and unplug it again。

I really can't do it, I can only go to the maintenance place to check!

There is an option to change the login mode in the user account on the control plane, just look at selecting one.

Open the Start menu, click on the small picture at the top to modify or cancel the password.

Click "Start Run", enter "rundll32 ,usersrundll", press the enter key and the "User Account" window will pop up, see clearly, this is different from the "User Account" panel window opened in the "Control Panel"! Then uncheck the "To use the machine, the user must enter a username and password" option, click OK, and enter the account and password you want the computer to automatically log in to each time in the pop-up dialog box.

If it's an XP system.

1. Control Panel Network Connection Local Connection Properties Network See if there is Netware customer service If there is, uninstall Restart.

2. Control Panel User Account Change User Login or Logout Method Check both on Restart OK

Click "Start" - Settings - Control Panel - User Account - Change User Login Method or Log Out.

Forgot Windows XP login password.

Resolution. 1. Use the net command (assuming that the username for forgetting the password is xxcxz).

We know that the "net user" command is provided in Windows XP, which can add and modify user account information, and its syntax format is:

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

3. Type the command: "net user xxcxz 123456 add" to force the password of the "xxcxz" 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 "xxcxz" user with the changed password "123456".

Resolution. 2. Use "administrator".

We know that in the process of installing Windows XP, the first thing is to log in with "Administrator" by default, and then we will ask to create a new account, so that we can log in with this new account when entering 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.

When we understand this, if you forget the login password, on the login interface, hold down the CTRL+ALT key, and then press and hold the del key twice, the classic login screen can appear, at this time, type "administrator" in the user name, the password is empty to enter, and then modify the password of "zhangbp".

Start --- settings--- Control Panel--- User Accounts ---select your current user) and go in --- remove your password.

It should be fine.

1. If you don't set a password when installing the system, you can directly press enter to skip this window.

2. If you want to eliminate this annoying window, you can open the control panel (switch to classic view) and find it"User Accounts

In the newly opened window (login and logout window), check the following image:

Select all the checkpoints in the box at the front of the tab, and then select the application with the green box below to eliminate the window for logging in and entering the password.

I haven't set it up to press enter or click to log in, if you don't want to do this, the solution is as follows:

Open the Control Panel first (switch to Classic View).

Found"User Accounts

Some can directly enter the system, or it may be that the guest account is enabled, go to the Control Panel User Account and Family Safety User Account to delete it.

If you haven't set it, just press enter or click to log in.

Before entering Windows

XP desktop,Every time there will be a brain login interface,Ask us to enter the user name and password,It can increase the security of the system,It also provides convenience for multiple people to share a computer,But if it is a home computer,Only you use it alone,So every password,It's not a little inconvenient。 We can achieve automatic login of XP by modifying the registry.

Step 1: Run "regedit" to open "Registry Manager"; Run the registry, then [hkey local machine\software\microsoft\windows\nt\currentversion\winlogon.]

branch, then double-click on "defaultusername" in the right-hand window and enter your login username. If you don't have a preset username, you can add this item by clicking "New String Value(s) defaultusername" in the menu bar of the registry, noting that it is case-sensitive.

Step 2: Also under this branch, double-click "defaultpassword" in the right window of the registry, if you don't find the "defaultpassword" item, you can follow the above steps to create a new string value.

Step 3: Next, double-click on "autoadminlogon" in the right window and set the value to "1". If you do not find autoadminlogon, you can create a new one by following the steps above.

Now close the registry and restart the computer, and later you will find that annoying login dialog is gone.

1: Do you have a one-click restore installed on your machine, DOS toolbox or the like, you can use them to delete the password. Then restart and enter adminstrator, and then the password is empty and it's OK.

2: Open the case, take out the CMOS lithium battery on the motherboard, after a while (5-10 minutes), put it in again, and the password will disappear automatically.

3: If you have Windows installed

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

add[options]

domain]

netuser

username

delete]

domain]]

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".