I've moved your post to the Antivirus topic folder.
I'm not sure that I understand your problem, but if you are using OneCare and it is reporting that the protection is off and cannot start, use this tool:
Virus and Spyware repair tool - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2667445&SiteID=2
If that does not work, or I misunderstood the problem, please contact support.
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
-steve