【 Weak current college 】 teaches you how to remove XP boot password

WindowsXP boot password
1) using the NET command rehabilitation.
Specific practices are as follows: press F8 when powered on, until you see the select list, select Safe mode with command prompt, the system will boot into our first Optional username, then we select the Administrator (this assumes that we have not set a password for this user), enter the command line, enter "netuser your username 123456/add" this will force your username password changed "123456", and then restart the computer, press the normal mode, enter the password when the input we have just read "123456".
2) use of Administrator.
The premise is that the user does not set the Administrator password, we use normal mode boot to login welcome interface, and then quickly press Ctrl + Alt + Del twice, is out and then enter the user name and password dialog box, enter the Administrator user name and password in the blank. Click here to login. You will enter the system, and then we right click on the "my computer" and select "manage", then the "computer management" window, and then to choose "local users and groups" and select it below the "user" folder, in the right window lists all the users of the current computer, right-click your users, select "change password" to reset your password. You can also open the "Control Panel" and "user account", select your user name, in the open window with a "remove password" you can clear your password for the user.
3) delete the SAM file method
If the Administrator has set a password, the above two methods are not successful, and we know that the password is stored in WindowsXP systems under the c:\Windows\System32\Config SAM file, SAM file is account password database file. When we logged on to the system, the system automatically and Config automatic proofing in SAM, as found in the password and username full and SAM file encryption data comply with the time, you will log on successfully; if the error is not logged in. As such, our first method produces: remove SAM file to recover password.
If you do not have the system card contains any account, and there are two operating systems, you can use another operating system can access NTFS boot the computer, or if the two systems is not installed, but you can use other tools to access NTFS. Then delete C:\WIDOWS\system32\config directory of SAM file, reboot. At this point, the administrator account has no password Administrator. Of course, remove the hard drive swap to a different machine to remove SAM file is a good idea.
4) replace the SAM file method

Do not know if you noticed, there is a repair under C:\WINDOWS folder, open and see what is inside, discovery and similar to C:\WINDOWS\SYSTEM32\CONFIG file, that's right-this is the system installed on the system configuration file after a backup-that is, from just charging system there, then it has not touched it the following five files and corresponding registry of several branch. we do not discuss anything first, will give the following SAM file overwrite C:\WINDOWS\SYSTEM32\CONFIG following SAM file completes the decrypted, and the same reason 3. the following specific steps: to be able to read the file system is on disk, and you can modify and, of course, you can put the hard disk to another machine up completed but this approach is not suitable for computer hardware does not know of a friend, we can find a support NTFS partition DOS boot disk (believe in each place has bought) and then enter the plain DOS, first determine whether the system in which letters, because loading the NTFS partition, and the original system drive letter, it is assumed that in drive d, we enter the command copyc: \ windows\repair\samc: \windows\system32\config carriage return, and then to cover it Y. when booting the system again you only have one user Administrator. And there is no password. Our system also can be used.

5 (summary of 3-4) up to a DOS

delc:\windows\system32\config\sam
copyc:\windows\repair\samc:\windows\system32\config

Note: cd (open command)
Cdwindows\system32 (open the system32 directory under windows)
Sam is the system password file, this is the password you haha would would
The first step is to remove windows password, the second step is to copy the winows system a blank password file into the config file directory
Note: Oh, if no action is the second step then the system will start too well (boot to login password there couldn't get in, attention!!!)