See: http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2908249&SiteID=2 for how to renew OneCare. I'm not sure what the fix permission item refers to in your post, but if OneCare is reporting that there is a problem with file permissions and Fix It didn't resolve that, please contact support:
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
-steve