This is almost as equally important as password protecting your administrator account. For general day-to-day activities, you do not want to be using your admin account. Instead, you should be using a user account that is also password protected (a password that is different than the one you are using for the admin account, please). This adds another layer of protection for your new PC because a user account does not have the same all-access permissions as an admin account. In some cases, malicious software will be thwarted by this level of permissions restriction alone.