For what version of SEPM?
In versions prior to SEP 12.1 RU1 MP1, “ResetPass.bat” can be found in the Tools folder of the SEPM install directory.
This script was designed to forcefully reset the default administrator account password, provided it has not been linked to an Active Directory account.
This script is no longer supported by Symantec and has not been tested on any version of the SEPM past 12.1 RU1. Using this script on any later version may cause damage to your SEPM or database.