1, restart the computer, immediately after the startup screen appears press the F8 key, select "Safe Mode with command line."
2, run the end of the process, the system lists the system super user "administrator" and the local user "*****" choice menu, mouse click "administrator", enter command line mode.
3, type the command: "net user ***** 123456 / add", to force the user's password to change the "*****" "123456." To this add a new user (such as: user name is abcdef, password 123456), please type "net user abcdef 123456 / add", add available after "net localgroup administrators abcdef / add" command will upgrade the system user Management group "administrators" of the user, and it has super rights.
4, restart the computer, select the normal mode, you can use to change the password after "123456" Login "*****" users.