This is the forums for Windows Live Onecare. Since you are using a different software it might be best if you could contact them first.
If you are using a free trial software for this Security Suite you can contact Microsoft Support here (This is available for US and Canada):
https://consumersecuritysupport.microsoft.com/default.aspx?mkt=en-usFrom there choose "I think my computer is infected" then follow the instructions and prompts to submit a support case.
Crimson Spectrum at http://aiscer.spaces.live.com