Script Download: ResetPassword.zip
http://gallery.technet.microsoft.com/scriptcenter/Reset-password-for-all-412fbc72
The script will reset password for users in specified OUs, or in a given CSV file.
IT Administrators may want to reset password for a large number of users in company. It will cost too much time to set new password one by one. Sometimes the new password should be a random password and different for every user. It’s easy to make mistake in manually way.
You can find more All-In-One Script Framework script samples at http://aka.ms/onescriptingallery