Retrieve passwords for lost Windows system permissions

First, using the NET command We know that in Windows XP the "net user" command is provided, this command can add and modify user account information, the syntax is: net user [UserName [Password *] [options]] [/domain] net user [UserName {Password *} /add [options] [/domain] net user [UserName [/delete] [/domain]] The specific meaning of each parameter has been detailed in Windows XP Help Explain, I will not elaborate on this. Well, we now use the recovery local user "zhangbq" as an example to explain the steps to solve the forgotten login password: 1. Restart the computer, press the F8 key immediately after the startup screen appears, select “ with the command line Safe mode & rdquo;. 2. At the end of the running process, the system lists the system super user “administrator” and the local user“zhangbq” selection menu, mouse click “administrator”, enter the command line mode. 3. Type the command: <;net user zhangbq 123456 /add”, forcibly change the password of the user to "ldbq" to "<123456”." If you want to add a new user here (for example: username is abcdef, password is 123456), type "<quo;net user abcdef 123456 /add”, after adding, you can use the "net localgroup administrators abcdef /add" command to upgrade the user. For the system management group “administrators” users, and make it have super permissions. 4, restart the computer, select the normal mode to run, you can use the changed password “123456” login & ldquo;zhangbq” users. Second, use “administrator” We know that in the process of installing Windows XP, first login with "administrator", and then will ask to create a new account, in order to enter Windows XP, use this new account to log in, and in Windows XP Only the created user account will appear in the login interface, and “administrator” will not appear, but in fact the “administrator” account still exists and the password is empty. After we understand this, if you forget the login password, on the login screen, hold down the Ctrl+Alt key and then press the Del key twice to display the classic login screen. At this time, type in the username. “administrator”, the password is empty to enter, and then modify the password of “zhangbp” How about, users who forget the Windows XP login password are not sure to give it a try.