You may want to contact support to completely remove it from the computer, but it may be an infection in your System Restore points. Open OneCare, click on change settings, then the logging tab and create a support log. In the report that opens in your browser, scroll to the virus and spyware section and look for the entries reporting the infection being cleaned. Note the location of the files. If these are your System Restore points, turn off system restore, which will delete all restore points, and then turn it back on again. Note that this will prevent you from being able to restore the PC to an earlier time with system restore.
If you prefer to work with support -
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
-steve