I see I am not alone with Sonic Update Manager causing computer problems. I started the download, but it keeps telling me to insert a disk. Like others I do not have a disk. I cannot get rid of their message or delete or remove the message that is blocking me from closing down my computer and it has two windows that are constantly present. I want to remove this incomplete download. I tried everything for days, weeks, If anyone out there knows how to just delete this thing I'd like to know how. Once again I DO NOT HAVE THE DISC they refer to.