I'm not sure what your problem is, but I don't think you're referring to Windows Live OneCare.
You're off topic for this forum, which is dedicated to Windows Live OneCare. You may want to try the Microsoft Public newsgroups here: http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx
If your problem involves Windows Updates,
Windows Update Solution Center - http://support.microsoft.com/ph/6527
Perhaps you should contact support for your PC manufacturer.
-steve