Uninstall One care on the laptop, run the cleanup tool - http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/399071e2-49dc-4767-932d-d261e3965943 then install One Care from here - http://onecare.live.com/standard/en-us/install/addcomputerinstall.htm When following the instructions for activation be sure to use the Live ID and password associated with your current active subscription.Jim