If you are using One Care you can contact support for help with malware removal. How to reach support - http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/30400b52-7f26-4ba0-bc18-17e305329d90 If you are not using One Care you are off topic in this forum but you can get help with malware removal here -
https://consumersecuritysupport.microsoft.com/default.aspx?mkt=en-us&scrx=1
Jim
Microsoft MVP Consumer Security - Forum Moderator - Live One Care - Live Mesh - Microsoft Security Essentials