How do you create password in hard drive?

You need to go to your System BiOS. When you boot up your computer, you will have to press Alt-F2 or something similar. This depends on your computer model. In the BiOS, there should be a section called "Security" or "PassWords" or something of that nature. There should be an option to ask for a "PassWord on Boot". The default should be all zeroes. You can put in a passWord which should force the user to enter a passWord before the operating system even boots up. DO NOT forget this passWord, otherwise you will be permanently locked out of that hard drive. You can obtain the master passWord from the manufacturer if you were the original purchaser.