Apparently, Apple does not recommend using my administrator account on a daily basis. I understand that I don't need administrator privileges for some tasks. I would still like to know why I should create a separate user. 1) I am the only one who will use this computer. 2) Mac OS X requires that I type in my administrator password any time I want to do something like modify system files or settings. 3) I can see if an application is or contains malware by doing some research on the Internet.