I was trying to change a file entry in the system files. After making the changes I clicked on "save" and was then told that I do not have the permission to write to this file. I checked the "get info" to this file and saw I can only read this file. I am however the administrator so why can I not make changes? This is what I was trying to do: Getting rid of Tynt in OSX Mac OS/X In Finder, from the Go menu, choose "Go to folder." In the "Go to the folder" dialog, type "/etc/". From the /etc/ folder window, open the "hosts" file in a text editor. Add the following to the hosts file in its own line, using the site that applies to you: 127.0.0.1 tcr.tynt.com Save and quit. At this point I was told that my changes could not be saved as I have no rights. In System Accounts I am set as the administrator. I am on automatic Login. I was asked for my password in order to save my settings in the text editor which I entered but was then again told that I do not have the permission. The "get info" on the host file shows me as read only. How can I change this?