Annoyance: virus message for non-existant file

Every time I boot, NIS2009 complains about an unresolved issue. I have checked very fully, including setting Explorer to show hidden and system files, and the file it complains about does not exist. But it pops up and says I should try to remove this non-existant file. How do I clear out this message?

I thought about un-install/re-install but am worried that it will use up a second of the 3 licenses. BTW, how does it keep track of that? I have been considering switching to an updated machine. If I uninstall on one can I move the program to another?