Download Unzip it and copy the PsPasswd.exe file to a folder in your path.

Systems administrators that manage local administrative accounts on multiple computers regularly need to change the account password as part of standard security practices. PsPasswd is a tool that lets you change an account password on the local or remote systems, enabling administrators to create batch files that run PsPasswd against the computers they manage in order to perform a mass change of the administrator password.

PsPasswd works on Windows NT and higher.

When you type pspasswd /?, you receive:

PsPasswd v1.21 - Local and remote password changer                              Copyright (C) 2003-2004 Mark Russinovich                              Sysinternals -                              PsPasswd changes passwords on a local or remote system.                              Usage: pspasswd \[\\\[computer\[,computer,\[,...\]|Domain\]|@file\] \[-u Username \[-p Password\]\]\] Username \[NewPassword\]                                   computer    Direct PsPasswd to perform the command on the remote                                               computer or computers specified. If you omit the computer                                               name PsPasswd runs the command on the local system,                                               and if you specify a wildcard (\\*), PsPasswd runs the                                               command on all computers in the current domain.                                   @file       PsPasswd will change the password on the computers listed                                               in the file.                                   -u          Specifies optional user name for login to remote                                               computer.                                   -p          Specifies optional password for user name. If you omit this                                               you will be prompted to enter a hidden password.                                   Username    Specifies name of account for password change.                                   NewPassword New password. If ommitted a NULL password is applied.