What should I do if I forget my username and password when the computer is turned on?

1. What if the computer forgets the power-on password? This can be easily done in six steps.

Win7 system forgot the boot password and operation details.

1. Restart the computer, press the F8 key of the keyboard to Enter the Windows Advanced Boot Options interface, use the keyboard "Up and Down" to select the "Safe Mode with Command Prompt" indicated by the red arrow, and then press the Enter key on the keyboard after confirmation.

2. Select the administrator account in the account window that appears and confirm.

3. After entering the safe mode with the command prompt, the system will pop up the command prompt window of the administrator mode. We only need to enter user Smile /add in the command prompt window and press Enter on the keyboard to successfully add a new user operation.

Fourth, enter the local group administrators smile/add in the command prompt window to upgrade the newly created account to administrator (so that you have the right to change users when you enter the system).

Step 5: Continue to enter shutdown /r /t 5 /f in the command prompt window, and then press Enter on the keyboard to restart the computer, as shown in Figure 5:

Step 6, enter the desktop normally, and the system will prompt you to log off the computer window within one minute. After restarting the computer again, select Smile account to enter the system.

At this point, we can enter the system normally. In order to operate normally next time, we need to delete the account with forgotten password:

Start → Control Panel → Add or Delete User Accounts → Select Forgot Password to Delete User → Click Delete Password.

2. If I forget my username and password, how can I turn on my desktop computer?

1, download Chinese cabbage software.

2. Start the cabbage software and turn your USB flash drive into a cabbage USB flash drive.

3. Change the computer startup project to USB flash drive startup.

4. Select the login password cracking menu and the option to bypass the login password.

After that, please wait for the computer to restart quietly and don't do anything. zd

6. Then click the arrow, wait a few seconds, and find that we have successfully logged in to the main interface.

3. What if the computer forgets the user name and power-on password?

1. First, when starting the computer, press F8 to enter the command prompt security mode, and enter user+username+123456/add to force a user's password to be123456.

2. In the interface of password input, first press ctrl+alt+U on the keypad, and press these three buttons with both hands at the same time to clear the process of password input. You don't need to fill in the password, just press enter to confirm.

It's too much trouble to turn it on every time. Let's click on the lower left corner and click on the control panel.

4. Find the user account button, and then click the left mouse button to open the user account. Use Super Administrator to reset the password. Don't enter the original password, don't worry about forgetting the original password.

5. Enter the new password you want, or you can enter the keywords that prompt you at the prompt. Click Create Password. A new password has been created and the original password has been replaced by this new password, which is protected by the account password.

4. What should I do if I forget my computer boot username and password?

The solution to forgetting the computer boot user name and password is as follows (taking windows 10 as an example):

1. First, you need a bootable Windows boot USB drive. You can download the latest version of Windows 10 15 1 1 image.

2. Then use the Windows boot disk to boot, and press Shift+F 10 above the folder to open the command prompt.

3. The default working path of the command prompt opened at this time is X:\Sources, so we need to find and navigate to the installation partition of Windows operating system. Usually D: \ disk, different environments may be different. After confirming the installation partition of Windows operating system, enter the System32 folder.

4. Next, replace the cmd.exe file with the utilman.exe corresponding to the easy-to-use button in the Windows login interface by the following command, so that you can get the permission to execute the command without logging into the system.

5. Next, you can restart your computer.

5. What should I do if I forget my username and password when I start the computer?

Method (1)

Restart the computer. When starting the system login interface, hold down the Ctrl+Alt key at the same time, and then double-click the Del key, and a new login interface will appear. Enter the password "Administrator" in the user name, and then press Enter to log in. After logging in, open the control panel and select/User Account/Change Account/Click the original "Account Name"/Change My Password/Enter a new password, enter the new password again, and then click "User Account".

If the computer administrator forgets the password, please use the second method or the third and fourth methods.

Method (2)

1. Restart the computer, press and hold the F8 key until the advanced options screen appears, then release your hand, select "Command Prompt in Safe Mode" and enter.

2. At the end of the running process, the system lists the selection menus of system super user "Administrator" and local user "* * * * *", and clicks "Administrator" to enter the command line mode.

3. Type the command: "user * * * 123456/add" to change the password of "* * * *" user to "123456". If you want to add a new user here (for example, user name is abcdef and password is 123456), please enter "user abcdef 123456 /add". After adding, you can use the "local group administrator ABCDEF/Add" command to promote the user to the "administrator" of the system management group, so that he has super rights.

4. Restart the computer and select the normal mode to run. You can log in the user "* * * * *" with the modified password "123456".

Method (3)

Install CD-ROM repair system with Windows xp system to crack the password of supercomputer administrator.

Step 1: Set the system to CD startup, and insert the system installation CD. When the first selection interface appears, press Enter, and when the second selection interface appears, press "R" to start the repair and installation. Setup then checks the disk and starts copying files. After the file is copied, the system will automatically restart.

Step 2: After restarting, the system will enter the graphical installation interface. Note: At this time, you should pay close attention to the lower left corner of the interface, and press the key combination "Shift+F 10" as soon as the "Install Equipment" progress bar appears. Then something unexpected happened, and a command prompt window appeared in front of us. This is the key to crack the password.

Step 3: Type "Lusrmgr.msc" in the command prompt window and press enter (excluding the double quotation marks) to open the local user and group management tool. Click "User" on the left, then right-click the administrator account on the right and select "Set Password". At this point, a warning window will pop up. After changing the password, some information in the system will be inaccessible. This mainly refers to the files encrypted by EFS, and the certificates have not been exported before, so these files will not be accessible after changing the password. If you don't have this file, I don't care. Just click "Continue", then enter a new password and click OK. Then close the local users and groups and the command prompt window to continue the repair installation. After installation, the system administrator account is "activated" again.

Method (4)

Countermeasures under WinXP/2000: Delete the SAM file in the system installation directory \system32 \config and restart. At this time, the administrator account has no password. Log in to the system with the administrator account, without entering any password, and reset the login account password after entering the system.

If it is a CMOS password, please forget:

Pull out the battery of the motherboard, and install it in 10 minutes.

Cancel CMOS password without discharging:

1. Run and enter CMD to open the command prompt, and enter debug to enter.

2. Enter "O 70 10" and press enter (note: English O is entered, not the number 0, there is a space between O and 70, and there is a space between 70 and 10).

3. Enter "O 7 1 10" and press enter (note: the input is English o, not the number 0, there is a space between o and 7 1 and there is a space between 7 1 and 10).

4. Enter "q" and press Enter.

5. Restart the computer, and the CMOS password has been cleared (the double quotation marks above have not been entered).

6. What if the computer forgets the boot user name and password?

This situation can be solved by the following methods:

1. If your computer has logged into the system, but you have forgotten your password, the easiest way is to open computer management.

2. Then right-click the user name and click Modify Password, which can be modified without entering a long password.

3. If the system can't log in, but DOS or one-click recovery, or MAXDOS, etc. Have been installed, you can directly restore the system with one click. Press the up and down keys to appear within 5 seconds when starting the machine, and then press enter to restore directly with one key.

4. Use the windows password cracking tool that comes with the CD, set the bios to CD startup, change the first boot device to dvdcdrom, then restart OK to enter the CD, and click to crack the password.

7. What should I do if I forget my computer power-on password?

(a) Turn on the machine, press F8 key continuously, enter advanced settings, and use command prompt security mode.

After running, there will be super user "Administrator" and local users. Click Administrator to enter the command line.

Enter the command "user username11/add" to change the user password to111,and enter "local group administrator username/add" to upgrade the user name to administrator rights.

(2) Repair with the installation disk, repair the system with the system installation CD, and crack the password of the supercomputer administrator.

1. Set the system to CD startup and put it into the system installation CD. When the first selection interface appears, press Enter, and when the second selection interface appears, press "R" to start the repair and installation. Setup then checks the disk and starts copying files. After the file is copied, the system will automatically restart.

2. After restarting, the system will enter the graphical installation interface. When the "Install Equipment" progress bar appears, press the key combination "Shift+F 10" quickly. Then a command prompt window will appear.

3. Type "Lusrmgr.msc" in the command prompt window, and then press enter to open the Local Users and Groups management tool. Click "User" on the left, then right-click the administrator account on the right and select "Set Password". A warning window will pop up. As a reminder, after changing the password, some information in the system will become inaccessible. This mainly refers to the files encrypted by EFS, and the certificates have not been exported before, so these files will not be accessible after changing the password. If there is no such file, we will ignore it, click "Continue" directly, and then enter the new password and confirm it. Close local users and groups and the command prompt window, and continue to repair the installation. After installation, the system administrator account is "activated" again.

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(3) Use 2003PE system to clear the password. If it is a USB flash drive, change the USB flash drive mode in bios settings, and click the password clearing and cracking options to clear the password.

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(4) copy the file c:\windows\repair\sam to the file c:\windows\system32\config\sam, and overwrite the file. (for xp)

8. What should I do if I forget my account number and password when the computer is turned on?

Computer unlocking

Recommend several methods to you.

Use the system to install and close the disk or start the USB flash drive and run password cracking.

U disk, download nectarine pe and start with a password cleaner.

Hello, the cracking method:

Restart the computer. When starting the system login interface, hold down the Ctrl+Alt key at the same time, and then double-click the Del key, and a new login interface will appear. Enter the password "Administrator" in the user name, and then press Enter to log in. After logging in, open the control panel and select/User Account/Change Account/Click the original "Account Name"/Change My Password/Enter a new password, enter the new password again, and then click "User Account".

Hope to adopt

9. What should I do if I forget my computer boot username and password?

If you forget the password of your ordinary account, please use the first method.

Method (1) Restart the computer. When starting the system login interface, hold down the Ctrl+Alt key at the same time, and then double-click the Del key, and a new login interface will appear. Enter the Administrator password in the user name, and then log in. After logging in, open the control panel and select/User Account/Change Account/Click the original "Account Name"/Change My Password/Enter a new password, and then enter the new password again. If the computer administrator forgets the password, please use the second method or the third and fourth methods.

Method (2) 1. Restart the computer, hold down the F8 key until the advanced options screen appears, then release your hand, select "Command Prompt in Safe Mode" and press Enter. 2. At the end of the running process, the system lists the selection menus of system super user "Administrator" and local user "* * * * *", and clicks "Administrator" to enter the command line mode.

3. Type the command: "user * * * 123456/add" to change the password of "* * * *" user to "123456". If you want to add a new user here (for example, user name is abcdef and password is 123456), please enter "user abcdef 123456 /add". After adding, you can use the "local group administrator ABCDEF/Add" command to promote the user to the "administrator" of the system management group, so that he has super rights.

4. Restart the computer and select the normal mode to run. You can log in the user "* * * * *" with the modified password "123456". Methods (3) Using Windows xp system to install the CD-ROM repair system and crack the password of the super computer administrator. Step 1: Set the system to CD startup, and insert the system installation CD.

When the first selection interface appears, press Enter, and when the second selection interface appears, press "R" to start the repair and installation. Setup then checks the disk and starts copying files.

After the file is copied, the system will automatically restart. Step 2: After restarting, the system will enter the graphical installation interface.

Note: At this time, you should pay close attention to the lower left corner of the interface, and press the key combination "Shift+F 10" as soon as the "Install Equipment" progress bar appears. Then something unexpected happened, and a command prompt window appeared in front of us.

This is the key to crack the password. Step 3: Type "Lusrmgr.msc" in the command prompt window and press enter (excluding the double quotation marks) to open the local user and group management tool.

Click "User" on the left, then right-click the administrator account on the right and select "Set Password". At this point, a warning window will pop up.

After changing the password, some information in the system will be inaccessible. This mainly refers to the files encrypted by EFS, and the certificates have not been exported before, so these files will not be accessible after changing the password.

If you don't have this file, I don't care. Just click "Continue", then enter a new password and click OK. Then close the local users and groups and the command prompt window to continue the repair installation.

After installation, the system administrator account is "activated" again. Method (4) Countermeasures under 4)win XP/2000: Delete the SAM file in the system installation directory \system32 \config and restart. At this time, the administrator account has no password. Log in to the system with an administrator account. You don't need to enter any password, and then reset the login account password after entering the system. You can use the ghost system disk to light up, which has the password cracking function XP approval 3| Comments.

10. I forgot how to get the computer user name and password.

Let's talk about how to solve the problem of forgetting the boot BIOS password: 1. If it is a desktop, the cracking method is as follows: Method 1: Open the chassis, buckle the CMOS battery for a few seconds, and the password will be automatically eliminated during installation.

Method 2: Step 1: Download a decryption software unlock6 (Baidu once) Step 2: When the notebook is opened, you will be prompted: enter the wrong password and press enter. Step 3: Repeat the above steps twice. At this time, a prompt of "System Di *** led" will appear, and a set of overflow passwords will pop up. Step 4: On another computer running WindowsXP, the decryption software unlock6.exe will be downloaded. Step 5: Click Start-All Programs-Accessories-Command Prompt and enter "unlock6 XXXXX 0", where XXXXX stands for the overflow password in step 4.

Step 6: At this time, the system will generate a new set of passwords, which can be used to access the locked notebook. After entering the BIOS, users can reset their passwords by themselves. 2. If it is the BIOS password of a notebook computer, you can also try to remove the CMOS battery. If not, you can only find the after-sales service of the dealer.

If the free warranty period has expired and you are unwilling to spend money to find a dealer to handle it, you can only install the system yourself. If the system is installed, you can download it according to the website given below.

There are also detailed computer system installation tutorials in win7 Ultimate Base. Can teach you how to install a perfect system in detail and accurately.

Second, if you forget the password of the WINDOWS system, the solution is as follows: the ultimate password cracking scheme: (the most suitable password for unlocking the Win7 system) By making a U disk startup disk of the "computer shop", the password of the Windows system is cracked. Prepare a USB flash drive above 4GB and format it.

1. Download the USB flash drive startup tool V6 from the computer store official website u. diannaodian-.1to the computer. 2. Run the USB flash drive of the computer store and start the production tool V6. 1 program on the computer. Please try to turn off anti-virus software and security software before (this software involves reading and writing mobile disks, and some false positives may lead to production failure! ) After downloading the software, double-click to run it under Windows XP system. For Windows Vista or Windows7/8 systems, right-click Run as Administrator.

U disk startup production: 1 Default mode: Default mode: 1. 1: Open the main program and insert the removable devices such as U disk /SD card. The disk list will automatically list the drive letter, model, capacity and other information of all removable disks in the current computer. Default mode: 1.2: Select the removable disk to boot. The startup mode is USB-HDD or USB-ZIP, and the default mode is USB-HDD.

(chs mode is mainly aimed at some undetectable Bios. Generally, you don't need to check this item! If you want to convert the rest of the USB flash drive into NTFS format, you can check the NTFS option. Note: formatting to NTFS will affect the use of USB flash drive startup function. It is not recommended to check this option unless you need to store more than 4G of a single file! Default mode: 1.3: Quit antivirus software and security software as far as possible to avoid production failure. Click the button of "Start USB flash drive with one button", and the program will prompt whether to continue. Please confirm that there is no important data in the selected USB flash drive before starting production. (Note: If the USB flash drive made by the startup disk making tool 2.0 and previous versions in the computer store fails, please initialize the USB flash drive first. Default mode: 1.4: The production process is subject to the computer configuration. After the production is completed, you can set the computer BIOS correctly and start from the USB flash drive.

In order to verify the success of USB flash drive startup, you can run simulated startup. Note: Simulated boot is only used to test whether the U disk is successfully booted, and cannot be used to test internal DOS and PE systems.

After the USB flash drive startup disk is made, restart the computer, set the USB flash drive as the first startup sequence through BIOS, restart the computer, select USB flash drive startup and press enter to enter the USB flash drive startup function interface of the computer store, select: 8 from the menu to run the Windows login password cracking menu, press enter, and then select: 1 or 2 to clear or modify the password. Attachment: Five methods for Windows-XP to cancel the boot password: Method 1: Press [F8] to enter the "safe mode with command prompt" when booting, and enter "user+username+123456/ADD" to force a user's password to be "123456" Method 2: If the user forgets the login password, 2. After selecting "Administrator", the window of "Command Prompt" will pop up; 3. Add a user with the command of [], for example, add a user name alanhkg888. The syntax of the command is as follows: user alanhkg888/add 4. Upgrade the newly added user to the Administrator's permission, for example, upgrade the newly added user alanhkg888. The command syntax is as follows: local group administrator alanhkg888/Add 5. Restart the computer after completing the above steps, and a user alanhkg888 will be added to the startup screen. Select Allen ·HKG 888 and enter 6. After logging in, select the user who forgot his password in Control Panel →→→→→ User Account. Then select [Delete Password], and then select [Logout]. 7. Select the original user who can wait without a password in the login screen (because the password has been deleted). 8. Delete the newly added user, select [[Alan HKG888] → [User Account] in [Control Panel], and then select [Delete Account]. * This method is not applicable to users who forgot to set [[〔administrator〕] during installation.

Method 3: 1. Restart Windows XP. Press F8, the startup screen will appear immediately, and select "Safe Mode and Command Line" to run. 2. When the running process stops, the system lists the selection menus of super user administrator and local user owner. Click Administrator to enter command line mode.

3. Type the command: "user OWNER 123456/add" (without double quotation marks) to change the password of the OWNER user to "123456". If you want to add a user here (for example, the user name is abcdef and the password is 123456), please enter "User abcdef".