de5_Roy :
i am having trouble understanding your request.
do you want to put password in your hitachi hdd? what kind of pc do you have?
don't ask for help breaking passwords or bypassing protection.
i have Acer Aspire One D255-N55DQKK Note Book PC with 1GB DDR3 memory,250GB HDD.Problem is that it has stoped working,it gives message that "Harddisk Security ,SATA 0 port Hitachi HTS545025B9ALock"after pushing ENTER key it asks for a password which I do not know.I want to know how to open this locked HHD.Is there some Master Password for this Purpose. THANKS.