One of the reasons I truly hate Microsoft, their crap is so difficult to get rid of. I am running Mavericks, and got tired of Microsoft Office 2008 and its "quirks." I tried to delete it using the uninstaller and got the message "You don't have permissions to perform this action." I got the same message when I just tried to move the entire Microsoft Office folder to the trash. I am on my primary admin account. Also, I went to the "Get Info" screen and the lock icon at the base will not change from locked after clicking on it. I did get a new iMac (late 2013) and transferred the user accounts. I cannot figure out how to force delete this folder.