Hello again Jack
I see that you have another problem which you believe to be a virus. It may be caused by this Nero thing, so lets get rid of Nero.
I might suggest to you to search in your registry but before I do, give a try to this free yet very efficient registry cleaner.
If the issue persists,
1. Back-up your registry.
2. Use the registry search tool
3. Type nero
4. Delete all value and key that are found.
5. Close the registry editor
6. With the Window search tool, all files and folder, search for Nero and manually delete all related files.
Let me know