This is a known issue for which a fix will be released shortly. There are some workarounds in this thread -
http://social.microsoft.com/Forums/en-US/onecareupdate/thread/297455ff-0484-4dd6-9627-ca1b0e30b015 Sale of One Care is going to be discontinued but it will be fully supported through the end of 2010. If you prefer to cancel your subscription send an e-mail with One Care in the subject line to
jrap107@msn.com and I will provide you a local support phone number.
Jim - MVP Windows Live - Forum Moderator - Live One Care - Live Mesh - Microsoft Security Essentials