In my options for tune up I have checked "remove unessary files", But in the monthly report ikt says "tune up is not set to preform this function"
What is going on?
I do believe that is a bug. You can check on Connect and file a bug if one is not found when you search.
Tosearch for and file a bug on Connect: https://connect.microsoft.com/site/sitehome.aspx?SiteID=168
See the Bug Submission Guide - http://connect.microsoft.com/content/content.aspx?ContentID=3480&SiteID=168 - for details on how to create and submit the Support Log zip file with your bug.