WinXP's security performance is much better than the previous Win9X. We can protect our secrets by setting up personal user passwords. What if we forget this login password one day? Is there no other way to format the hard drive reinstallation system? So let's look for the secret to recover WinXP login password! 1. Create a boot floppy disk for repairing user passwords. Microsoft provides a boot floppy disk that can create a repair user password in WinXP. It can be used to start the computer through this floppy disk when you forget the password, so we should not forget to log in. Make a password boot disk before the password for backup. Click on the "User Account" option in the "Start\\Control Panel" dialog box. Select your own account in the pop-up dialog window and you will be taken to the control interface of your account. Then click on the top left of the window to block one. Forgot the password & rdquo; option, enter the "Forgot Password Wizard" dialog box. Click “Next”, the wizard prompts to insert a blank formatted disk into the floppy drive, and then click the “Next” button, the wizard prompts to enter the current password of the account, after entering After a few seconds, I created a password boot disk. When we forget our password one day, just click the arrow to the right of our own account, then click “reset the disk with password in the pop-up prompt, then insert the previously created password boot disk into the floppy drive, follow The system prompts you to reset your password and be able to start WinXP. This method is suitable for WinXP in various partition formats. 2. Rebuild the WinXP login password through the NET command. If you forget the WinXP login password, and you have forgotten the password, you will not use the WinXP provided "Forgot Password Wizard" to create a password boot disk. so what should I do now? In fact, it can be solved by running WinXP's internal command Net command. Now take the recovery user "ABCD" as an example to explain how to resolve the login password. Restart WinXP. At the moment after the startup screen appears, press F8 and select "Safe Mode with Command Line" to run. After the startup process is completed, the system lists the selection menu of the super user Administrator and the user ABCD. Click the Administrator button, enter the command line mode and type the command: <quo;net user ABCD 1234 /add”, forcibly change the ABCD user password to "ld" ;1234”. If you want to add a user here (for example, the user name is 12345 and the password is 67890), you should type “<quo;net user 12345 67890 /add”, after adding, you can use the “net localgroup administrator 12345 /add” command to user. Promoted to the system management group administrator user with super permissions. Then restart WinXP, select the normal mode to run, you can log in to the ABCD user with the changed password “1234” This method is only applicable to WinXP installed with FAT32 partition and the user account is not a Chinese character name. 3. Remove WinX through dual system If there are other operating systems in addition to WinXP in our machine, you can use another operating system to boot, and then delete the current SAM file on C:\\windows\\system32\\config (if WinXP is installed in C disk, can be deleted according to the actual situation), that is, the account password data file. Then restart WinXP, then the administrator administrator account has no password. Of course, if there is only one WinXP system, you can also remove the hard disk and switch to other machines to delete the SAM file. This method is suitable for WinXP installed with FAT32 partition. If you install with NTFS partition, you must ensure that other systems can access NTFS partition. 4. Use the NTFSDOS tool to recover the WinXP login password. First download a tool called NTFSDOS from http://www.cgsecurity.org/index.html?ntfs.html. Use this tool to create a NTFS partition that can be operated from DOS. Boot disk. After booting DOS, switch to the system. If C:\\Windows\\system32, rename logon.scr to logon.scr.bak, copy a command.com and rename the file name to logon.scr, then restart the machine and wait. 15 minutes, the screen saver that should have appeared now becomes the command line mode, and has the administrator permission, through which you can change the password or add a new administrator account. After entering WinXP, change the name of the logon.scr.bak screen saver back. This method is suitable for WinXP installation on NTFS partitions. 5. Use other tools to rebuild the WinXP login password. You can find many WinXP login password tools on the Internet. For example, you can use the Linux boot disks to access the NTFS file system, and you can read the registry and rewrite the account password. You can use the NTAcess tool. Bypassing the protection of the system syskey, reset the passwords of WinNT/2000 and WinXP; there are tools such as passware kit, O&O Bluecon2000, etc. The specific operations are not described. See the description of each software tool.