Follow these steps to enter a password:
1.Move your cursor to the security option.
2.Use 
or
to select either setup Access or
System Access; then press 
3.You’ll see the following prompt in a window at the center of the screen:
Enter Password:
4.Enter the password you want to use. As you type the password, the screen displays an asterisk for each letter. Then you see this prompt:
Confirm Password:
Again, you’ll see an asterisk for each letter you type.
If the password you type the second time doesn’t match the first password you entered, you see the Enter Password: prompt again.
5.As you exit the SETUP program, make sure you press to save the new settings. If you set the System Access password, when the system reboots you will see the password prompt.
Changing or Deleting a Password
If you want to change one of the Password options, follow the same steps as to enter a new one. When you see the Enter Password: prompt, just type the new password you want to use.